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Finding the Fourth Proportional to 239,654.76, 330,722.64 and 132,231.48

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Solution

The fourth proportional to 239,654.76, 330,722.64 and 132,231.48 is: 182,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,654.76 : 330,722.64 = 132,231.48 : x
  2. Step 2: Convert to fraction form
    239,654.76/330,722.64 = 132,231.48/x
  3. Step 3: Cross multiply
    239,654.76x = 330,722.64 × 132,231.48
  4. Step 4: Simplify right side
    239,654.76x = 43,731,944,156.71
  5. Step 5: Solve for x
    x = 43,731,944,156.71/239,654.76
  6. Step 6: Final answer
    x = 182,478.93

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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.