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Finding the Fourth Proportional to 110.96, 166.18 and 96.63

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Solution

The fourth proportional to 110.96, 166.18 and 96.63 is: 144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.96 : 166.18 = 96.63 : x
  2. Step 2: Convert to fraction form
    110.96/166.18 = 96.63/x
  3. Step 3: Cross multiply
    110.96x = 166.18 × 96.63
  4. Step 4: Simplify right side
    110.96x = 16,057.97
  5. Step 5: Solve for x
    x = 16,057.97/110.96
  6. Step 6: Final answer
    x = 144.72

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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.