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Finding the Fourth Proportional to 168.88, 233.06 and 110.66

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Solution

The fourth proportional to 168.88, 233.06 and 110.66 is: 152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.88 : 233.06 = 110.66 : x
  2. Step 2: Convert to fraction form
    168.88/233.06 = 110.66/x
  3. Step 3: Cross multiply
    168.88x = 233.06 × 110.66
  4. Step 4: Simplify right side
    168.88x = 25,790.42
  5. Step 5: Solve for x
    x = 25,790.42/168.88
  6. Step 6: Final answer
    x = 152.71

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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.