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Finding the Fourth Proportional to 67,745.60, 101,472.60 and 56,081.60

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Solution

The fourth proportional to 67,745.60, 101,472.60 and 56,081.60 is: 84,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,745.60 : 101,472.60 = 56,081.60 : x
  2. Step 2: Convert to fraction form
    67,745.60/101,472.60 = 56,081.60/x
  3. Step 3: Cross multiply
    67,745.60x = 101,472.60 × 56,081.60
  4. Step 4: Simplify right side
    67,745.60x = 5,690,745,764.16
  5. Step 5: Solve for x
    x = 5,690,745,764.16/67,745.60
  6. Step 6: Final answer
    x = 84,001.70

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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.