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Finding the Fourth Proportional to 95.37, 131.37 and 76.92

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Solution

The fourth proportional to 95.37, 131.37 and 76.92 is: 105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.37 : 131.37 = 76.92 : x
  2. Step 2: Convert to fraction form
    95.37/131.37 = 76.92/x
  3. Step 3: Cross multiply
    95.37x = 131.37 × 76.92
  4. Step 4: Simplify right side
    95.37x = 10,104.98
  5. Step 5: Solve for x
    x = 10,104.98/95.37
  6. Step 6: Final answer
    x = 105.96

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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.