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Finding the Fourth Proportional to 220,791.92, 304,691.99 and 123,982.32

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Solution

The fourth proportional to 220,791.92, 304,691.99 and 123,982.32 is: 171,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,791.92 : 304,691.99 = 123,982.32 : x
  2. Step 2: Convert to fraction form
    220,791.92/304,691.99 = 123,982.32/x
  3. Step 3: Cross multiply
    220,791.92x = 304,691.99 × 123,982.32
  4. Step 4: Simplify right side
    220,791.92x = 37,776,419,185.71
  5. Step 5: Solve for x
    x = 37,776,419,185.71/220,791.92
  6. Step 6: Final answer
    x = 171,095.12

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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.