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Finding the Fourth Proportional to 95.26, 142.66 and 49.49

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Solution

The fourth proportional to 95.26, 142.66 and 49.49 is: 74.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.26 : 142.66 = 49.49 : x
  2. Step 2: Convert to fraction form
    95.26/142.66 = 49.49/x
  3. Step 3: Cross multiply
    95.26x = 142.66 × 49.49
  4. Step 4: Simplify right side
    95.26x = 7,060.24
  5. Step 5: Solve for x
    x = 7,060.24/95.26
  6. Step 6: Final answer
    x = 74.12

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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.