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Finding the Fourth Proportional to 83,391.54, 125,086.53 and 36,040.11

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Solution

The fourth proportional to 83,391.54, 125,086.53 and 36,040.11 is: 54,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,391.54 : 125,086.53 = 36,040.11 : x
  2. Step 2: Convert to fraction form
    83,391.54/125,086.53 = 36,040.11/x
  3. Step 3: Cross multiply
    83,391.54x = 125,086.53 × 36,040.11
  4. Step 4: Simplify right side
    83,391.54x = 4,508,132,300.72
  5. Step 5: Solve for x
    x = 4,508,132,300.72/83,391.54
  6. Step 6: Final answer
    x = 54,059.83

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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.