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Finding the Fourth Proportional to 168.44, 252.48 and 107.46

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Solution

The fourth proportional to 168.44, 252.48 and 107.46 is: 161.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.44 : 252.48 = 107.46 : x
  2. Step 2: Convert to fraction form
    168.44/252.48 = 107.46/x
  3. Step 3: Cross multiply
    168.44x = 252.48 × 107.46
  4. Step 4: Simplify right side
    168.44x = 27,131.50
  5. Step 5: Solve for x
    x = 27,131.50/168.44
  6. Step 6: Final answer
    x = 161.08

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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.