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Finding the Fourth Proportional to 168.24, 232.12 and 106.08

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Solution

The fourth proportional to 168.24, 232.12 and 106.08 is: 146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.24 : 232.12 = 106.08 : x
  2. Step 2: Convert to fraction form
    168.24/232.12 = 106.08/x
  3. Step 3: Cross multiply
    168.24x = 232.12 × 106.08
  4. Step 4: Simplify right side
    168.24x = 24,621.96
  5. Step 5: Solve for x
    x = 24,621.96/168.24
  6. Step 6: Final answer
    x = 146.35

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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.