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Finding the Fourth Proportional to 110.86, 167.11 and 106.23

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Solution

The fourth proportional to 110.86, 167.11 and 106.23 is: 160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.86 : 167.11 = 106.23 : x
  2. Step 2: Convert to fraction form
    110.86/167.11 = 106.23/x
  3. Step 3: Cross multiply
    110.86x = 167.11 × 106.23
  4. Step 4: Simplify right side
    110.86x = 17,752.11
  5. Step 5: Solve for x
    x = 17,752.11/110.86
  6. Step 6: Final answer
    x = 160.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.