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Finding the Fourth Proportional to 239,456.70, 330,449.96 and 132,028.43

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Solution

The fourth proportional to 239,456.70, 330,449.96 and 132,028.43 is: 182,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,456.70 : 330,449.96 = 132,028.43 : x
  2. Step 2: Convert to fraction form
    239,456.70/330,449.96 = 132,028.43/x
  3. Step 3: Cross multiply
    239,456.70x = 330,449.96 × 132,028.43
  4. Step 4: Simplify right side
    239,456.70x = 43,628,788,090.18
  5. Step 5: Solve for x
    x = 43,628,788,090.18/239,456.70
  6. Step 6: Final answer
    x = 182,199.07

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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.