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Finding the Fourth Proportional to 96.22, 144.26 and 83.18

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Solution

The fourth proportional to 96.22, 144.26 and 83.18 is: 124.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.22 : 144.26 = 83.18 : x
  2. Step 2: Convert to fraction form
    96.22/144.26 = 83.18/x
  3. Step 3: Cross multiply
    96.22x = 144.26 × 83.18
  4. Step 4: Simplify right side
    96.22x = 11,999.55
  5. Step 5: Solve for x
    x = 11,999.55/96.22
  6. Step 6: Final answer
    x = 124.71

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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.