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Finding the Fourth Proportional to 95.12, 131.10 and 67.46

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Solution

The fourth proportional to 95.12, 131.10 and 67.46 is: 92.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.12 : 131.10 = 67.46 : x
  2. Step 2: Convert to fraction form
    95.12/131.10 = 67.46/x
  3. Step 3: Cross multiply
    95.12x = 131.10 × 67.46
  4. Step 4: Simplify right side
    95.12x = 8,844.01
  5. Step 5: Solve for x
    x = 8,844.01/95.12
  6. Step 6: Final answer
    x = 92.98

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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.