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Finding the Fourth Proportional to 195,679.90, 270,044.94 and 109,642.48

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Solution

The fourth proportional to 195,679.90, 270,044.94 and 109,642.48 is: 151,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,679.90 : 270,044.94 = 109,642.48 : x
  2. Step 2: Convert to fraction form
    195,679.90/270,044.94 = 109,642.48/x
  3. Step 3: Cross multiply
    195,679.90x = 270,044.94 × 109,642.48
  4. Step 4: Simplify right side
    195,679.90x = 29,608,396,933.05
  5. Step 5: Solve for x
    x = 29,608,396,933.05/195,679.90
  6. Step 6: Final answer
    x = 151,310.36

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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.