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Finding the Fourth Proportional to 87,615.73, 120,909.57 and 47,329.48

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Solution

The fourth proportional to 87,615.73, 120,909.57 and 47,329.48 is: 65,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.73 : 120,909.57 = 47,329.48 : x
  2. Step 2: Convert to fraction form
    87,615.73/120,909.57 = 47,329.48/x
  3. Step 3: Cross multiply
    87,615.73x = 120,909.57 × 47,329.48
  4. Step 4: Simplify right side
    87,615.73x = 5,722,587,075.12
  5. Step 5: Solve for x
    x = 5,722,587,075.12/87,615.73
  6. Step 6: Final answer
    x = 65,314.61

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