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Finding the Fourth Proportional to 96.14, 144 and 61.94

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Solution

The fourth proportional to 96.14, 144 and 61.94 is: 92.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.14 : 144 = 61.94 : x
  2. Step 2: Convert to fraction form
    96.14/144 = 61.94/x
  3. Step 3: Cross multiply
    96.14x = 144 × 61.94
  4. Step 4: Simplify right side
    96.14x = 8,919.72
  5. Step 5: Solve for x
    x = 8,919.72/96.14
  6. Step 6: Final answer
    x = 92.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.