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Finding the Fourth Proportional to 159,513.97, 239,188.17 and 47,179.42

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Solution

The fourth proportional to 159,513.97, 239,188.17 and 47,179.42 is: 70,744.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,513.97 : 239,188.17 = 47,179.42 : x
  2. Step 2: Convert to fraction form
    159,513.97/239,188.17 = 47,179.42/x
  3. Step 3: Cross multiply
    159,513.97x = 239,188.17 × 47,179.42
  4. Step 4: Simplify right side
    159,513.97x = 11,284,757,935.52
  5. Step 5: Solve for x
    x = 11,284,757,935.52/159,513.97
  6. Step 6: Final answer
    x = 70,744.64

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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.