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Finding the Fourth Proportional to 87,663.40, 131,495.10 and 56,520.52

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Solution

The fourth proportional to 87,663.40, 131,495.10 and 56,520.52 is: 84,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,663.40 : 131,495.10 = 56,520.52 : x
  2. Step 2: Convert to fraction form
    87,663.40/131,495.10 = 56,520.52/x
  3. Step 3: Cross multiply
    87,663.40x = 131,495.10 × 56,520.52
  4. Step 4: Simplify right side
    87,663.40x = 7,432,171,429.45
  5. Step 5: Solve for x
    x = 7,432,171,429.45/87,663.40
  6. Step 6: Final answer
    x = 84,780.78

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