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Finding the Fourth Proportional to 444,765.71, 667,189.57 and 145,247.86

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Solution

The fourth proportional to 444,765.71, 667,189.57 and 145,247.86 is: 217,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,765.71 : 667,189.57 = 145,247.86 : x
  2. Step 2: Convert to fraction form
    444,765.71/667,189.57 = 145,247.86/x
  3. Step 3: Cross multiply
    444,765.71x = 667,189.57 × 145,247.86
  4. Step 4: Simplify right side
    444,765.71x = 96,907,853,974.75
  5. Step 5: Solve for x
    x = 96,907,853,974.75/444,765.71
  6. Step 6: Final answer
    x = 217,885.18

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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.