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Finding the Fourth Proportional to 125,510.31, 188,301.92 and 50,591.79

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Solution

The fourth proportional to 125,510.31, 188,301.92 and 50,591.79 is: 75,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,510.31 : 188,301.92 = 50,591.79 : x
  2. Step 2: Convert to fraction form
    125,510.31/188,301.92 = 50,591.79/x
  3. Step 3: Cross multiply
    125,510.31x = 188,301.92 × 50,591.79
  4. Step 4: Simplify right side
    125,510.31x = 9,526,530,940.28
  5. Step 5: Solve for x
    x = 9,526,530,940.28/125,510.31
  6. Step 6: Final answer
    x = 75,902.38

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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.