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Finding the Fourth Proportional to 239,486.70, 330,489.62 and 132,061.26

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Solution

The fourth proportional to 239,486.70, 330,489.62 and 132,061.26 is: 182,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,486.70 : 330,489.62 = 132,061.26 : x
  2. Step 2: Convert to fraction form
    239,486.70/330,489.62 = 132,061.26/x
  3. Step 3: Cross multiply
    239,486.70x = 330,489.62 × 132,061.26
  4. Step 4: Simplify right side
    239,486.70x = 43,644,875,634.12
  5. Step 5: Solve for x
    x = 43,644,875,634.12/239,486.70
  6. Step 6: Final answer
    x = 182,243.42

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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.