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Finding the Fourth Proportional to 332,768.59, 499,124.84 and 143,221.30

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Solution

The fourth proportional to 332,768.59, 499,124.84 and 143,221.30 is: 214,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,768.59 : 499,124.84 = 143,221.30 : x
  2. Step 2: Convert to fraction form
    332,768.59/499,124.84 = 143,221.30/x
  3. Step 3: Cross multiply
    332,768.59x = 499,124.84 × 143,221.30
  4. Step 4: Simplify right side
    332,768.59x = 71,485,306,483.17
  5. Step 5: Solve for x
    x = 71,485,306,483.17/332,768.59
  6. Step 6: Final answer
    x = 214,819.88

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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.