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Finding the Fourth Proportional to 159,348.52, 239,020.62 and 54,240.76

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Solution

The fourth proportional to 159,348.52, 239,020.62 and 54,240.76 is: 81,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,348.52 : 239,020.62 = 54,240.76 : x
  2. Step 2: Convert to fraction form
    159,348.52/239,020.62 = 54,240.76/x
  3. Step 3: Cross multiply
    159,348.52x = 239,020.62 × 54,240.76
  4. Step 4: Simplify right side
    159,348.52x = 12,964,660,084.47
  5. Step 5: Solve for x
    x = 12,964,660,084.47/159,348.52
  6. Step 6: Final answer
    x = 81,360.40

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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.