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Finding the Fourth Proportional to 444,632.60, 667,035.30 and 129,099.80

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Solution

The fourth proportional to 444,632.60, 667,035.30 and 129,099.80 is: 193,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,632.60 : 667,035.30 = 129,099.80 : x
  2. Step 2: Convert to fraction form
    444,632.60/667,035.30 = 129,099.80/x
  3. Step 3: Cross multiply
    444,632.60x = 667,035.30 × 129,099.80
  4. Step 4: Simplify right side
    444,632.60x = 86,114,123,822.94
  5. Step 5: Solve for x
    x = 86,114,123,822.94/444,632.60
  6. Step 6: Final answer
    x = 193,674.79

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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.