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Finding the Fourth Proportional to 445,334.33, 667,995.82 and 108,375.55

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Solution

The fourth proportional to 445,334.33, 667,995.82 and 108,375.55 is: 162,561.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,334.33 : 667,995.82 = 108,375.55 : x
  2. Step 2: Convert to fraction form
    445,334.33/667,995.82 = 108,375.55/x
  3. Step 3: Cross multiply
    445,334.33x = 667,995.82 × 108,375.55
  4. Step 4: Simplify right side
    445,334.33x = 72,394,414,390.20
  5. Step 5: Solve for x
    x = 72,394,414,390.20/445,334.33
  6. Step 6: Final answer
    x = 162,561.94

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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.