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Finding the Fourth Proportional to 239,668.48, 330,743.69 and 132,238.59

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Solution

The fourth proportional to 239,668.48, 330,743.69 and 132,238.59 is: 182,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,668.48 : 330,743.69 = 132,238.59 : x
  2. Step 2: Convert to fraction form
    239,668.48/330,743.69 = 132,238.59/x
  3. Step 3: Cross multiply
    239,668.48x = 330,743.69 × 132,238.59
  4. Step 4: Simplify right side
    239,668.48x = 43,737,079,217.00
  5. Step 5: Solve for x
    x = 43,737,079,217.00/239,668.48
  6. Step 6: Final answer
    x = 182,489.91

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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.