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Finding the Fourth Proportional to 94.92, 141.60 and 92.52

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Solution

The fourth proportional to 94.92, 141.60 and 92.52 is: 138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.92 : 141.60 = 92.52 : x
  2. Step 2: Convert to fraction form
    94.92/141.60 = 92.52/x
  3. Step 3: Cross multiply
    94.92x = 141.60 × 92.52
  4. Step 4: Simplify right side
    94.92x = 13,100.83
  5. Step 5: Solve for x
    x = 13,100.83/94.92
  6. Step 6: Final answer
    x = 138.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.