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Finding the Fourth Proportional to 71,935.20, 107,910.90 and 22,014.90

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Solution

The fourth proportional to 71,935.20, 107,910.90 and 22,014.90 is: 33,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,935.20 : 107,910.90 = 22,014.90 : x
  2. Step 2: Convert to fraction form
    71,935.20/107,910.90 = 22,014.90/x
  3. Step 3: Cross multiply
    71,935.20x = 107,910.90 × 22,014.90
  4. Step 4: Simplify right side
    71,935.20x = 2,375,647,672.41
  5. Step 5: Solve for x
    x = 2,375,647,672.41/71,935.20
  6. Step 6: Final answer
    x = 33,024.83

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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.