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Finding the Fourth Proportional to 159,344.64, 239,016.96 and 54,174.72

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Solution

The fourth proportional to 159,344.64, 239,016.96 and 54,174.72 is: 81,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,344.64 : 239,016.96 = 54,174.72 : x
  2. Step 2: Convert to fraction form
    159,344.64/239,016.96 = 54,174.72/x
  3. Step 3: Cross multiply
    159,344.64x = 239,016.96 × 54,174.72
  4. Step 4: Simplify right side
    159,344.64x = 12,948,676,883.25
  5. Step 5: Solve for x
    x = 12,948,676,883.25/159,344.64
  6. Step 6: Final answer
    x = 81,262.08

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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.