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Finding the Fourth Proportional to 71,989.17, 107,937.48 and 29,898.27

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Solution

The fourth proportional to 71,989.17, 107,937.48 and 29,898.27 is: 44,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,989.17 : 107,937.48 = 29,898.27 : x
  2. Step 2: Convert to fraction form
    71,989.17/107,937.48 = 29,898.27/x
  3. Step 3: Cross multiply
    71,989.17x = 107,937.48 × 29,898.27
  4. Step 4: Simplify right side
    71,989.17x = 3,227,143,920.16
  5. Step 5: Solve for x
    x = 3,227,143,920.16/71,989.17
  6. Step 6: Final answer
    x = 44,828.19

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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.