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Finding the Fourth Proportional to 96, 144.72 and 94.56

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Solution

The fourth proportional to 96, 144.72 and 94.56 is: 142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96 : 144.72 = 94.56 : x
  2. Step 2: Convert to fraction form
    96/144.72 = 94.56/x
  3. Step 3: Cross multiply
    96x = 144.72 × 94.56
  4. Step 4: Simplify right side
    96x = 13,684.72
  5. Step 5: Solve for x
    x = 13,684.72/96
  6. Step 6: Final answer
    x = 142.55

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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.