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Finding the Fourth Proportional to 96.22, 132.83 and 76.51

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Solution

The fourth proportional to 96.22, 132.83 and 76.51 is: 105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.22 : 132.83 = 76.51 : x
  2. Step 2: Convert to fraction form
    96.22/132.83 = 76.51/x
  3. Step 3: Cross multiply
    96.22x = 132.83 × 76.51
  4. Step 4: Simplify right side
    96.22x = 10,162.82
  5. Step 5: Solve for x
    x = 10,162.82/96.22
  6. Step 6: Final answer
    x = 105.62

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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.