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Finding the Fourth Proportional to 234,514.80, 323,631.72 and 127,084.92

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Solution

The fourth proportional to 234,514.80, 323,631.72 and 127,084.92 is: 175,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,514.80 : 323,631.72 = 127,084.92 : x
  2. Step 2: Convert to fraction form
    234,514.80/323,631.72 = 127,084.92/x
  3. Step 3: Cross multiply
    234,514.80x = 323,631.72 × 127,084.92
  4. Step 4: Simplify right side
    234,514.80x = 41,128,711,245.66
  5. Step 5: Solve for x
    x = 41,128,711,245.66/234,514.80
  6. Step 6: Final answer
    x = 175,377.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.