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Finding the Fourth Proportional to 327,239.60, 491,118.60 and 127,655.60

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Solution

The fourth proportional to 327,239.60, 491,118.60 and 127,655.60 is: 191,584.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,239.60 : 491,118.60 = 127,655.60 : x
  2. Step 2: Convert to fraction form
    327,239.60/491,118.60 = 127,655.60/x
  3. Step 3: Cross multiply
    327,239.60x = 491,118.60 × 127,655.60
  4. Step 4: Simplify right side
    327,239.60x = 62,694,039,554.16
  5. Step 5: Solve for x
    x = 62,694,039,554.16/327,239.60
  6. Step 6: Final answer
    x = 191,584.51

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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.