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Finding the Fourth Proportional to 96.16, 144.23 and 27.68

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Solution

The fourth proportional to 96.16, 144.23 and 27.68 is: 41.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.16 : 144.23 = 27.68 : x
  2. Step 2: Convert to fraction form
    96.16/144.23 = 27.68/x
  3. Step 3: Cross multiply
    96.16x = 144.23 × 27.68
  4. Step 4: Simplify right side
    96.16x = 3,991.43
  5. Step 5: Solve for x
    x = 3,991.43/96.16
  6. Step 6: Final answer
    x = 41.51

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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.