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Finding the Fourth Proportional to 87,805.56, 131,737.91 and 27,843.83

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Solution

The fourth proportional to 87,805.56, 131,737.91 and 27,843.83 is: 41,775.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.56 : 131,737.91 = 27,843.83 : x
  2. Step 2: Convert to fraction form
    87,805.56/131,737.91 = 27,843.83/x
  3. Step 3: Cross multiply
    87,805.56x = 131,737.91 × 27,843.83
  4. Step 4: Simplify right side
    87,805.56x = 3,668,087,172.69
  5. Step 5: Solve for x
    x = 3,668,087,172.69/87,805.56
  6. Step 6: Final answer
    x = 41,775.11

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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.