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Finding the Fourth Proportional to 445,375.89, 667,933.22 and 125,506.49

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Solution

The fourth proportional to 445,375.89, 667,933.22 and 125,506.49 is: 188,222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,375.89 : 667,933.22 = 125,506.49 : x
  2. Step 2: Convert to fraction form
    445,375.89/667,933.22 = 125,506.49/x
  3. Step 3: Cross multiply
    445,375.89x = 667,933.22 × 125,506.49
  4. Step 4: Simplify right side
    445,375.89x = 83,829,950,970.70
  5. Step 5: Solve for x
    x = 83,829,950,970.70/445,375.89
  6. Step 6: Final answer
    x = 188,222.92

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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.