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Finding the Fourth Proportional to 297,679.80, 446,591.70 and 87,324.60

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Solution

The fourth proportional to 297,679.80, 446,591.70 and 87,324.60 is: 131,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,679.80 : 446,591.70 = 87,324.60 : x
  2. Step 2: Convert to fraction form
    297,679.80/446,591.70 = 87,324.60/x
  3. Step 3: Cross multiply
    297,679.80x = 446,591.70 × 87,324.60
  4. Step 4: Simplify right side
    297,679.80x = 38,998,441,565.82
  5. Step 5: Solve for x
    x = 38,998,441,565.82/297,679.80
  6. Step 6: Final answer
    x = 131,008.02

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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.