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Finding the Fourth Proportional to 327,530.87, 491,004.11 and 127,804.80

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Solution

The fourth proportional to 327,530.87, 491,004.11 and 127,804.80 is: 191,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,530.87 : 491,004.11 = 127,804.80 : x
  2. Step 2: Convert to fraction form
    327,530.87/491,004.11 = 127,804.80/x
  3. Step 3: Cross multiply
    327,530.87x = 491,004.11 × 127,804.80
  4. Step 4: Simplify right side
    327,530.87x = 62,752,682,077.73
  5. Step 5: Solve for x
    x = 62,752,682,077.73/327,530.87
  6. Step 6: Final answer
    x = 191,593.18

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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.