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Finding the Fourth Proportional to 123,891.80, 185,844.75 and 35,138.29

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Solution

The fourth proportional to 123,891.80, 185,844.75 and 35,138.29 is: 52,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,891.80 : 185,844.75 = 35,138.29 : x
  2. Step 2: Convert to fraction form
    123,891.80/185,844.75 = 35,138.29/x
  3. Step 3: Cross multiply
    123,891.80x = 185,844.75 × 35,138.29
  4. Step 4: Simplify right side
    123,891.80x = 6,530,265,791.25
  5. Step 5: Solve for x
    x = 6,530,265,791.25/123,891.80
  6. Step 6: Final answer
    x = 52,709.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.