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Finding the Fourth Proportional to 87,702.55, 131,553.53 and 31,542.56

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Solution

The fourth proportional to 87,702.55, 131,553.53 and 31,542.56 is: 47,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.55 : 131,553.53 = 31,542.56 : x
  2. Step 2: Convert to fraction form
    87,702.55/131,553.53 = 31,542.56/x
  3. Step 3: Cross multiply
    87,702.55x = 131,553.53 × 31,542.56
  4. Step 4: Simplify right side
    87,702.55x = 4,149,535,520.98
  5. Step 5: Solve for x
    x = 4,149,535,520.98/87,702.55
  6. Step 6: Final answer
    x = 47,313.74

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