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Finding the Fourth Proportional to 96.23, 132.44 and 83.88

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Solution

The fourth proportional to 96.23, 132.44 and 83.88 is: 115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.23 : 132.44 = 83.88 : x
  2. Step 2: Convert to fraction form
    96.23/132.44 = 83.88/x
  3. Step 3: Cross multiply
    96.23x = 132.44 × 83.88
  4. Step 4: Simplify right side
    96.23x = 11,109.07
  5. Step 5: Solve for x
    x = 11,109.07/96.23
  6. Step 6: Final answer
    x = 115.44

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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.