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Finding the Fourth Proportional to 159,355.40, 239,033.10 and 133,694.60

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Solution

The fourth proportional to 159,355.40, 239,033.10 and 133,694.60 is: 200,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,355.40 : 239,033.10 = 133,694.60 : x
  2. Step 2: Convert to fraction form
    159,355.40/239,033.10 = 133,694.60/x
  3. Step 3: Cross multiply
    159,355.40x = 239,033.10 × 133,694.60
  4. Step 4: Simplify right side
    159,355.40x = 31,957,434,691.26
  5. Step 5: Solve for x
    x = 31,957,434,691.26/159,355.40
  6. Step 6: Final answer
    x = 200,541.90

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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.