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Finding the Fourth Proportional to 67,424.40, 100,942.20 and 41,180.40

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Solution

The fourth proportional to 67,424.40, 100,942.20 and 41,180.40 is: 61,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,424.40 : 100,942.20 = 41,180.40 : x
  2. Step 2: Convert to fraction form
    67,424.40/100,942.20 = 41,180.40/x
  3. Step 3: Cross multiply
    67,424.40x = 100,942.20 × 41,180.40
  4. Step 4: Simplify right side
    67,424.40x = 4,156,840,172.88
  5. Step 5: Solve for x
    x = 4,156,840,172.88/67,424.40
  6. Step 6: Final answer
    x = 61,651.87

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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.