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Finding the Fourth Proportional to 110.13, 164.04 and 109.92

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Solution

The fourth proportional to 110.13, 164.04 and 109.92 is: 163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110.13 : 164.04 = 109.92 : x
  2. Step 2: Convert to fraction form
    110.13/164.04 = 109.92/x
  3. Step 3: Cross multiply
    110.13x = 164.04 × 109.92
  4. Step 4: Simplify right side
    110.13x = 18,031.28
  5. Step 5: Solve for x
    x = 18,031.28/110.13
  6. Step 6: Final answer
    x = 163.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.