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Finding the Fourth Proportional to 198,884.33, 274,489.29 and 111,679.22

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Solution

The fourth proportional to 198,884.33, 274,489.29 and 111,679.22 is: 154,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,884.33 : 274,489.29 = 111,679.22 : x
  2. Step 2: Convert to fraction form
    198,884.33/274,489.29 = 111,679.22/x
  3. Step 3: Cross multiply
    198,884.33x = 274,489.29 × 111,679.22
  4. Step 4: Simplify right side
    198,884.33x = 30,654,749,805.55
  5. Step 5: Solve for x
    x = 30,654,749,805.55/198,884.33
  6. Step 6: Final answer
    x = 154,133.56

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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.