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Finding the Fourth Proportional to 239,891.91, 359,837.82 and 71,414.70

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Solution

The fourth proportional to 239,891.91, 359,837.82 and 71,414.70 is: 107,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,891.91 : 359,837.82 = 71,414.70 : x
  2. Step 2: Convert to fraction form
    239,891.91/359,837.82 = 71,414.70/x
  3. Step 3: Cross multiply
    239,891.91x = 359,837.82 × 71,414.70
  4. Step 4: Simplify right side
    239,891.91x = 25,697,709,963.95
  5. Step 5: Solve for x
    x = 25,697,709,963.95/239,891.91
  6. Step 6: Final answer
    x = 107,122.04

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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.