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Finding the Fourth Proportional to 329,765.20, 494,662.20 and 108,149.20

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Solution

The fourth proportional to 329,765.20, 494,662.20 and 108,149.20 is: 162,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,765.20 : 494,662.20 = 108,149.20 : x
  2. Step 2: Convert to fraction form
    329,765.20/494,662.20 = 108,149.20/x
  3. Step 3: Cross multiply
    329,765.20x = 494,662.20 × 108,149.20
  4. Step 4: Simplify right side
    329,765.20x = 53,497,321,200.24
  5. Step 5: Solve for x
    x = 53,497,321,200.24/329,765.20
  6. Step 6: Final answer
    x = 162,228.52

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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.