A lithotripter machine uses an elliptical reflector to break up kidney stones nonsurgically. A spark plug in the reflector generates energy waves at one focus of an ellipse. The reflector directs these waves toward the kidney stone positioned at the other focus of the ellipse with enough energy to break up the stone, as shown in the figure. The lengths of the major and minor axes of the ellipse are 260 millimeters and 150 millimeters, respectively. How far is the spark from the kidney stone? (Round your answer to one decimal place.)
A lithotripter machine uses an elliptical reflector to break up kidney stones nonsurgically. A spark plug in the reflector generates energy waves at one focus of an ellipse. The reflector directs these waves toward the kidney stone positioned at the other focus of the ellipse with enough energy to break up the stone, as shown in the figure. The lengths of the major and minor axes of the ellipse are 260 millimeters and 150 millimeters, respectively. How far is the spark from the kidney stone? (Round your answer to one decimal place.)
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