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Finding the Fourth Proportional to 239,685.67, 330,752.25 and 132,255.45

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Solution

The fourth proportional to 239,685.67, 330,752.25 and 132,255.45 is: 182,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,685.67 : 330,752.25 = 132,255.45 : x
  2. Step 2: Convert to fraction form
    239,685.67/330,752.25 = 132,255.45/x
  3. Step 3: Cross multiply
    239,685.67x = 330,752.25 × 132,255.45
  4. Step 4: Simplify right side
    239,685.67x = 43,743,786,917.85
  5. Step 5: Solve for x
    x = 43,743,786,917.85/239,685.67
  6. Step 6: Final answer
    x = 182,504.81

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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.