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Finding the Fourth Proportional to 163.22, 225.33 and 110.84

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Solution

The fourth proportional to 163.22, 225.33 and 110.84 is: 153.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.22 : 225.33 = 110.84 : x
  2. Step 2: Convert to fraction form
    163.22/225.33 = 110.84/x
  3. Step 3: Cross multiply
    163.22x = 225.33 × 110.84
  4. Step 4: Simplify right side
    163.22x = 24,975.58
  5. Step 5: Solve for x
    x = 24,975.58/163.22
  6. Step 6: Final answer
    x = 153.02

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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.