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Finding the Fourth Proportional to 71,940.84, 107,901.02 and 22,691.56

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Solution

The fourth proportional to 71,940.84, 107,901.02 and 22,691.56 is: 34,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940.84 : 107,901.02 = 22,691.56 : x
  2. Step 2: Convert to fraction form
    71,940.84/107,901.02 = 22,691.56/x
  3. Step 3: Cross multiply
    71,940.84x = 107,901.02 × 22,691.56
  4. Step 4: Simplify right side
    71,940.84x = 2,448,442,469.39
  5. Step 5: Solve for x
    x = 2,448,442,469.39/71,940.84
  6. Step 6: Final answer
    x = 34,034.11

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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.