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Finding the Fourth Proportional to 444,749.56, 667,189.34 and 129,165.46

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Solution

The fourth proportional to 444,749.56, 667,189.34 and 129,165.46 is: 193,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,749.56 : 667,189.34 = 129,165.46 : x
  2. Step 2: Convert to fraction form
    444,749.56/667,189.34 = 129,165.46/x
  3. Step 3: Cross multiply
    444,749.56x = 667,189.34 × 129,165.46
  4. Step 4: Simplify right side
    444,749.56x = 86,177,818,008.20
  5. Step 5: Solve for x
    x = 86,177,818,008.20/444,749.56
  6. Step 6: Final answer
    x = 193,767.07

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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.