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Finding the Fourth Proportional to 168.54, 252.46 and 96.18

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Solution

The fourth proportional to 168.54, 252.46 and 96.18 is: 144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.54 : 252.46 = 96.18 : x
  2. Step 2: Convert to fraction form
    168.54/252.46 = 96.18/x
  3. Step 3: Cross multiply
    168.54x = 252.46 × 96.18
  4. Step 4: Simplify right side
    168.54x = 24,281.60
  5. Step 5: Solve for x
    x = 24,281.60/168.54
  6. Step 6: Final answer
    x = 144.07

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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.