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Finding the Fourth Proportional to 445,158.89, 667,732.37 and 108,198.57

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Solution

The fourth proportional to 445,158.89, 667,732.37 and 108,198.57 is: 162,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,158.89 : 667,732.37 = 108,198.57 : x
  2. Step 2: Convert to fraction form
    445,158.89/667,732.37 = 108,198.57/x
  3. Step 3: Cross multiply
    445,158.89x = 667,732.37 × 108,198.57
  4. Step 4: Simplify right side
    445,158.89x = 72,247,687,035.72
  5. Step 5: Solve for x
    x = 72,247,687,035.72/445,158.89
  6. Step 6: Final answer
    x = 162,296.41

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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.