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Finding the Fourth Proportional to 67,086.98, 100,531.64 and 29,612.60

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Solution

The fourth proportional to 67,086.98, 100,531.64 and 29,612.60 is: 44,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,086.98 : 100,531.64 = 29,612.60 : x
  2. Step 2: Convert to fraction form
    67,086.98/100,531.64 = 29,612.60/x
  3. Step 3: Cross multiply
    67,086.98x = 100,531.64 × 29,612.60
  4. Step 4: Simplify right side
    67,086.98x = 2,977,002,591.94
  5. Step 5: Solve for x
    x = 2,977,002,591.94/67,086.98
  6. Step 6: Final answer
    x = 44,375.27

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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.