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Finding the Fourth Proportional to 95.76, 132.11 and 68.07

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Solution

The fourth proportional to 95.76, 132.11 and 68.07 is: 93.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.76 : 132.11 = 68.07 : x
  2. Step 2: Convert to fraction form
    95.76/132.11 = 68.07/x
  3. Step 3: Cross multiply
    95.76x = 132.11 × 68.07
  4. Step 4: Simplify right side
    95.76x = 8,993.14
  5. Step 5: Solve for x
    x = 8,993.14/95.76
  6. Step 6: Final answer
    x = 93.91

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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.