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Finding the Fourth Proportional to 119,863.20, 179,924.40 and 67,375.20

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Solution

The fourth proportional to 119,863.20, 179,924.40 and 67,375.20 is: 101,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,863.20 : 179,924.40 = 67,375.20 : x
  2. Step 2: Convert to fraction form
    119,863.20/179,924.40 = 67,375.20/x
  3. Step 3: Cross multiply
    119,863.20x = 179,924.40 × 67,375.20
  4. Step 4: Simplify right side
    119,863.20x = 12,122,442,434.88
  5. Step 5: Solve for x
    x = 12,122,442,434.88/119,863.20
  6. Step 6: Final answer
    x = 101,135.65

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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.