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Finding the Fourth Proportional to 163.44, 244.92 and 82.26

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Solution

The fourth proportional to 163.44, 244.92 and 82.26 is: 123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.44 : 244.92 = 82.26 : x
  2. Step 2: Convert to fraction form
    163.44/244.92 = 82.26/x
  3. Step 3: Cross multiply
    163.44x = 244.92 × 82.26
  4. Step 4: Simplify right side
    163.44x = 20,147.12
  5. Step 5: Solve for x
    x = 20,147.12/163.44
  6. Step 6: Final answer
    x = 123.27

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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.