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Finding the Fourth Proportional to 185,695.92, 278,371.88 and 67,335.48

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Solution

The fourth proportional to 185,695.92, 278,371.88 and 67,335.48 is: 100,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,695.92 : 278,371.88 = 67,335.48 : x
  2. Step 2: Convert to fraction form
    185,695.92/278,371.88 = 67,335.48/x
  3. Step 3: Cross multiply
    185,695.92x = 278,371.88 × 67,335.48
  4. Step 4: Simplify right side
    185,695.92x = 18,744,304,158.30
  5. Step 5: Solve for x
    x = 18,744,304,158.30/185,695.92
  6. Step 6: Final answer
    x = 100,940.85

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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.