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Finding the Fourth Proportional to 185,480.92, 278,249.16 and 67,179.88

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Solution

The fourth proportional to 185,480.92, 278,249.16 and 67,179.88 is: 100,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,480.92 : 278,249.16 = 67,179.88 : x
  2. Step 2: Convert to fraction form
    185,480.92/278,249.16 = 67,179.88/x
  3. Step 3: Cross multiply
    185,480.92x = 278,249.16 × 67,179.88
  4. Step 4: Simplify right side
    185,480.92x = 18,692,745,178.90
  5. Step 5: Solve for x
    x = 18,692,745,178.90/185,480.92
  6. Step 6: Final answer
    x = 100,779.88

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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.