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Finding the Fourth Proportional to 444,763.20, 667,231.20 and 192,043.20

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Solution

The fourth proportional to 444,763.20, 667,231.20 and 192,043.20 is: 288,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,763.20 : 667,231.20 = 192,043.20 : x
  2. Step 2: Convert to fraction form
    444,763.20/667,231.20 = 192,043.20/x
  3. Step 3: Cross multiply
    444,763.20x = 667,231.20 × 192,043.20
  4. Step 4: Simplify right side
    444,763.20x = 128,137,214,787.84
  5. Step 5: Solve for x
    x = 128,137,214,787.84/444,763.20
  6. Step 6: Final answer
    x = 288,102.11

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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.