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Finding the Fourth Proportional to 444,834.31, 667,349.46 and 129,315.82

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Solution

The fourth proportional to 444,834.31, 667,349.46 and 129,315.82 is: 194,002.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,834.31 : 667,349.46 = 129,315.82 : x
  2. Step 2: Convert to fraction form
    444,834.31/667,349.46 = 129,315.82/x
  3. Step 3: Cross multiply
    444,834.31x = 667,349.46 × 129,315.82
  4. Step 4: Simplify right side
    444,834.31x = 86,298,842,646.46
  5. Step 5: Solve for x
    x = 86,298,842,646.46/444,834.31
  6. Step 6: Final answer
    x = 194,002.22

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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.