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Finding the Fourth Proportional to 327,131.60, 491,010.60 and 169,473.20

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Solution

The fourth proportional to 327,131.60, 491,010.60 and 169,473.20 is: 254,372.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,131.60 : 491,010.60 = 169,473.20 : x
  2. Step 2: Convert to fraction form
    327,131.60/491,010.60 = 169,473.20/x
  3. Step 3: Cross multiply
    327,131.60x = 491,010.60 × 169,473.20
  4. Step 4: Simplify right side
    327,131.60x = 83,213,137,615.92
  5. Step 5: Solve for x
    x = 83,213,137,615.92/327,131.60
  6. Step 6: Final answer
    x = 254,372.06

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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.