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Finding the Fourth Proportional to 444,814.20, 667,221.30 and 112,390.20

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Solution

The fourth proportional to 444,814.20, 667,221.30 and 112,390.20 is: 168,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,814.20 : 667,221.30 = 112,390.20 : x
  2. Step 2: Convert to fraction form
    444,814.20/667,221.30 = 112,390.20/x
  3. Step 3: Cross multiply
    444,814.20x = 667,221.30 × 112,390.20
  4. Step 4: Simplify right side
    444,814.20x = 74,989,135,351.26
  5. Step 5: Solve for x
    x = 74,989,135,351.26/444,814.20
  6. Step 6: Final answer
    x = 168,585.30

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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.