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Finding the Fourth Proportional to 159,612.91, 239,489.89 and 83,693.32

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Solution

The fourth proportional to 159,612.91, 239,489.89 and 83,693.32 is: 125,576.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.91 : 239,489.89 = 83,693.32 : x
  2. Step 2: Convert to fraction form
    159,612.91/239,489.89 = 83,693.32/x
  3. Step 3: Cross multiply
    159,612.91x = 239,489.89 × 83,693.32
  4. Step 4: Simplify right side
    159,612.91x = 20,043,704,000.53
  5. Step 5: Solve for x
    x = 20,043,704,000.53/159,612.91
  6. Step 6: Final answer
    x = 125,576.96

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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.