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Finding the Fourth Proportional to 71,377.20, 107,040.60 and 24,619.20

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Solution

The fourth proportional to 71,377.20, 107,040.60 and 24,619.20 is: 36,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,377.20 : 107,040.60 = 24,619.20 : x
  2. Step 2: Convert to fraction form
    71,377.20/107,040.60 = 24,619.20/x
  3. Step 3: Cross multiply
    71,377.20x = 107,040.60 × 24,619.20
  4. Step 4: Simplify right side
    71,377.20x = 2,635,253,939.52
  5. Step 5: Solve for x
    x = 2,635,253,939.52/71,377.20
  6. Step 6: Final answer
    x = 36,920.11

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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.