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Finding the Fourth Proportional to 67,294.13, 100,930.19 and 47,512.71

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Solution

The fourth proportional to 67,294.13, 100,930.19 and 47,512.71 is: 71,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,294.13 : 100,930.19 = 47,512.71 : x
  2. Step 2: Convert to fraction form
    67,294.13/100,930.19 = 47,512.71/x
  3. Step 3: Cross multiply
    67,294.13x = 100,930.19 × 47,512.71
  4. Step 4: Simplify right side
    67,294.13x = 4,795,466,610.15
  5. Step 5: Solve for x
    x = 4,795,466,610.15/67,294.13
  6. Step 6: Final answer
    x = 71,261.30

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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.