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Finding the Fourth Proportional to 159,793.60, 239,498.40 and 66,251.20

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Solution

The fourth proportional to 159,793.60, 239,498.40 and 66,251.20 is: 99,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,793.60 : 239,498.40 = 66,251.20 : x
  2. Step 2: Convert to fraction form
    159,793.60/239,498.40 = 66,251.20/x
  3. Step 3: Cross multiply
    159,793.60x = 239,498.40 × 66,251.20
  4. Step 4: Simplify right side
    159,793.60x = 15,867,056,398.08
  5. Step 5: Solve for x
    x = 15,867,056,398.08/159,793.60
  6. Step 6: Final answer
    x = 99,297.20

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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.