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Finding the Fourth Proportional to 95.18, 131.18 and 76.82

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Solution

The fourth proportional to 95.18, 131.18 and 76.82 is: 105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.18 : 131.18 = 76.82 : x
  2. Step 2: Convert to fraction form
    95.18/131.18 = 76.82/x
  3. Step 3: Cross multiply
    95.18x = 131.18 × 76.82
  4. Step 4: Simplify right side
    95.18x = 10,077.25
  5. Step 5: Solve for x
    x = 10,077.25/95.18
  6. Step 6: Final answer
    x = 105.88

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