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Finding the Fourth Proportional to 159,867.27, 239,757.16 and 60,019.78

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Solution

The fourth proportional to 159,867.27, 239,757.16 and 60,019.78 is: 90,013.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,867.27 : 239,757.16 = 60,019.78 : x
  2. Step 2: Convert to fraction form
    159,867.27/239,757.16 = 60,019.78/x
  3. Step 3: Cross multiply
    159,867.27x = 239,757.16 × 60,019.78
  4. Step 4: Simplify right side
    159,867.27x = 14,390,171,996.62
  5. Step 5: Solve for x
    x = 14,390,171,996.62/159,867.27
  6. Step 6: Final answer
    x = 90,013.25

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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.