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Finding the Fourth Proportional to 267,921.65, 369,711.56 and 147,043.73

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Solution

The fourth proportional to 267,921.65, 369,711.56 and 147,043.73 is: 202,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,921.65 : 369,711.56 = 147,043.73 : x
  2. Step 2: Convert to fraction form
    267,921.65/369,711.56 = 147,043.73/x
  3. Step 3: Cross multiply
    267,921.65x = 369,711.56 × 147,043.73
  4. Step 4: Simplify right side
    267,921.65x = 54,363,765,514.63
  5. Step 5: Solve for x
    x = 54,363,765,514.63/267,921.65
  6. Step 6: Final answer
    x = 202,909.19

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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.