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Finding the Fourth Proportional to 67,211.87, 100,747.40 and 25,074.99

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Solution

The fourth proportional to 67,211.87, 100,747.40 and 25,074.99 is: 37,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.87 : 100,747.40 = 25,074.99 : x
  2. Step 2: Convert to fraction form
    67,211.87/100,747.40 = 25,074.99/x
  3. Step 3: Cross multiply
    67,211.87x = 100,747.40 × 25,074.99
  4. Step 4: Simplify right side
    67,211.87x = 2,526,239,922.15
  5. Step 5: Solve for x
    x = 2,526,239,922.15/67,211.87
  6. Step 6: Final answer
    x = 37,586.22

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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.