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Finding the Fourth Proportional to 239,791.65, 330,912.53 and 132,361.71

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Solution

The fourth proportional to 239,791.65, 330,912.53 and 132,361.71 is: 182,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,791.65 : 330,912.53 = 132,361.71 : x
  2. Step 2: Convert to fraction form
    239,791.65/330,912.53 = 132,361.71/x
  3. Step 3: Cross multiply
    239,791.65x = 330,912.53 × 132,361.71
  4. Step 4: Simplify right side
    239,791.65x = 43,800,148,331.23
  5. Step 5: Solve for x
    x = 43,800,148,331.23/239,791.65
  6. Step 6: Final answer
    x = 182,659.19

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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.