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Finding the Fourth Proportional to 67,211.66, 100,747.14 and 25,074.78

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Solution

The fourth proportional to 67,211.66, 100,747.14 and 25,074.78 is: 37,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.66 : 100,747.14 = 25,074.78 : x
  2. Step 2: Convert to fraction form
    67,211.66/100,747.14 = 25,074.78/x
  3. Step 3: Cross multiply
    67,211.66x = 100,747.14 × 25,074.78
  4. Step 4: Simplify right side
    67,211.66x = 2,526,212,371.13
  5. Step 5: Solve for x
    x = 2,526,212,371.13/67,211.66
  6. Step 6: Final answer
    x = 37,585.93

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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.