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Finding the Fourth Proportional to 108.91, 150.68 and 96

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Solution

The fourth proportional to 108.91, 150.68 and 96 is: 132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.91 : 150.68 = 96 : x
  2. Step 2: Convert to fraction form
    108.91/150.68 = 96/x
  3. Step 3: Cross multiply
    108.91x = 150.68 × 96
  4. Step 4: Simplify right side
    108.91x = 14,465.28
  5. Step 5: Solve for x
    x = 14,465.28/108.91
  6. Step 6: Final answer
    x = 132.82

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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.