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Finding the Fourth Proportional to 69,198.39, 95,494.14 and 38,985.03

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Solution

The fourth proportional to 69,198.39, 95,494.14 and 38,985.03 is: 53,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,198.39 : 95,494.14 = 38,985.03 : x
  2. Step 2: Convert to fraction form
    69,198.39/95,494.14 = 38,985.03/x
  3. Step 3: Cross multiply
    69,198.39x = 95,494.14 × 38,985.03
  4. Step 4: Simplify right side
    69,198.39x = 3,722,841,912.72
  5. Step 5: Solve for x
    x = 3,722,841,912.72/69,198.39
  6. Step 6: Final answer
    x = 53,799.55

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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.