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Finding the Fourth Proportional to 243.99, 366.03 and 113.97

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Solution

The fourth proportional to 243.99, 366.03 and 113.97 is: 170.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.99 : 366.03 = 113.97 : x
  2. Step 2: Convert to fraction form
    243.99/366.03 = 113.97/x
  3. Step 3: Cross multiply
    243.99x = 366.03 × 113.97
  4. Step 4: Simplify right side
    243.99x = 41,716.44
  5. Step 5: Solve for x
    x = 41,716.44/243.99
  6. Step 6: Final answer
    x = 170.98

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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.