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Finding the Fourth Proportional to 96.96, 146.36 and 92

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Solution

The fourth proportional to 96.96, 146.36 and 92 is: 138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.96 : 146.36 = 92 : x
  2. Step 2: Convert to fraction form
    96.96/146.36 = 92/x
  3. Step 3: Cross multiply
    96.96x = 146.36 × 92
  4. Step 4: Simplify right side
    96.96x = 13,465.12
  5. Step 5: Solve for x
    x = 13,465.12/96.96
  6. Step 6: Final answer
    x = 138.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.