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Finding the Fourth Proportional to 332,046.60, 497,613.05 and 142,279.80

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Solution

The fourth proportional to 332,046.60, 497,613.05 and 142,279.80 is: 213,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,046.60 : 497,613.05 = 142,279.80 : x
  2. Step 2: Convert to fraction form
    332,046.60/497,613.05 = 142,279.80/x
  3. Step 3: Cross multiply
    332,046.60x = 497,613.05 × 142,279.80
  4. Step 4: Simplify right side
    332,046.60x = 70,800,285,231.39
  5. Step 5: Solve for x
    x = 70,800,285,231.39/332,046.60
  6. Step 6: Final answer
    x = 213,223.94

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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.