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Finding the Fourth Proportional to 267,172.24, 400,481.88 and 126,824.08

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Solution

The fourth proportional to 267,172.24, 400,481.88 and 126,824.08 is: 190,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,172.24 : 400,481.88 = 126,824.08 : x
  2. Step 2: Convert to fraction form
    267,172.24/400,481.88 = 126,824.08/x
  3. Step 3: Cross multiply
    267,172.24x = 400,481.88 × 126,824.08
  4. Step 4: Simplify right side
    267,172.24x = 50,790,745,987.67
  5. Step 5: Solve for x
    x = 50,790,745,987.67/267,172.24
  6. Step 6: Final answer
    x = 190,104.88

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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.