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Finding the Fourth Proportional to 324,673.85, 487,115.89 and 156,172.24

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Solution

The fourth proportional to 324,673.85, 487,115.89 and 156,172.24 is: 234,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,673.85 : 487,115.89 = 156,172.24 : x
  2. Step 2: Convert to fraction form
    324,673.85/487,115.89 = 156,172.24/x
  3. Step 3: Cross multiply
    324,673.85x = 487,115.89 × 156,172.24
  4. Step 4: Simplify right side
    324,673.85x = 76,073,981,105.52
  5. Step 5: Solve for x
    x = 76,073,981,105.52/324,673.85
  6. Step 6: Final answer
    x = 234,308.93

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1.5x scale

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.