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Finding the Fourth Proportional to 87,502.87, 131,305.28 and 36,898.80

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Solution

The fourth proportional to 87,502.87, 131,305.28 and 36,898.80 is: 55,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,502.87 : 131,305.28 = 36,898.80 : x
  2. Step 2: Convert to fraction form
    87,502.87/131,305.28 = 36,898.80/x
  3. Step 3: Cross multiply
    87,502.87x = 131,305.28 × 36,898.80
  4. Step 4: Simplify right side
    87,502.87x = 4,845,007,265.66
  5. Step 5: Solve for x
    x = 4,845,007,265.66/87,502.87
  6. Step 6: Final answer
    x = 55,369.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.