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Finding the Fourth Proportional to 67,617.20, 101,425.80 and 62,076.80

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Solution

The fourth proportional to 67,617.20, 101,425.80 and 62,076.80 is: 93,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,617.20 : 101,425.80 = 62,076.80 : x
  2. Step 2: Convert to fraction form
    67,617.20/101,425.80 = 62,076.80/x
  3. Step 3: Cross multiply
    67,617.20x = 101,425.80 × 62,076.80
  4. Step 4: Simplify right side
    67,617.20x = 6,296,189,101.44
  5. Step 5: Solve for x
    x = 6,296,189,101.44/67,617.20
  6. Step 6: Final answer
    x = 93,115.20

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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.