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Finding the Fourth Proportional to 94.91, 141.44 and 92.27

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Solution

The fourth proportional to 94.91, 141.44 and 92.27 is: 137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.91 : 141.44 = 92.27 : x
  2. Step 2: Convert to fraction form
    94.91/141.44 = 92.27/x
  3. Step 3: Cross multiply
    94.91x = 141.44 × 92.27
  4. Step 4: Simplify right side
    94.91x = 13,051.02
  5. Step 5: Solve for x
    x = 13,051.02/94.91
  6. Step 6: Final answer
    x = 137.51

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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.