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Finding the Fourth Proportional to 332,874.28, 499,332.44 and 140,712.88

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Solution

The fourth proportional to 332,874.28, 499,332.44 and 140,712.88 is: 211,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,874.28 : 499,332.44 = 140,712.88 : x
  2. Step 2: Convert to fraction form
    332,874.28/499,332.44 = 140,712.88/x
  3. Step 3: Cross multiply
    332,874.28x = 499,332.44 × 140,712.88
  4. Step 4: Simplify right side
    332,874.28x = 70,262,505,709.83
  5. Step 5: Solve for x
    x = 70,262,505,709.83/332,874.28
  6. Step 6: Final answer
    x = 211,078.21

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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.