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Finding the Fourth Proportional to 159,348.60, 239,022.90 and 88,489.80

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Solution

The fourth proportional to 159,348.60, 239,022.90 and 88,489.80 is: 132,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,348.60 : 239,022.90 = 88,489.80 : x
  2. Step 2: Convert to fraction form
    159,348.60/239,022.90 = 88,489.80/x
  3. Step 3: Cross multiply
    159,348.60x = 239,022.90 × 88,489.80
  4. Step 4: Simplify right side
    159,348.60x = 21,151,088,616.42
  5. Step 5: Solve for x
    x = 21,151,088,616.42/159,348.60
  6. Step 6: Final answer
    x = 132,734.70

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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.