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Finding the Fourth Proportional to 94.16, 141.24 and 92.36

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Solution

The fourth proportional to 94.16, 141.24 and 92.36 is: 138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.16 : 141.24 = 92.36 : x
  2. Step 2: Convert to fraction form
    94.16/141.24 = 92.36/x
  3. Step 3: Cross multiply
    94.16x = 141.24 × 92.36
  4. Step 4: Simplify right side
    94.16x = 13,044.93
  5. Step 5: Solve for x
    x = 13,044.93/94.16
  6. Step 6: Final answer
    x = 138.54

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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.