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Finding the Fourth Proportional to 122.97, 184.49 and 50.83

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Solution

The fourth proportional to 122.97, 184.49 and 50.83 is: 76.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.97 : 184.49 = 50.83 : x
  2. Step 2: Convert to fraction form
    122.97/184.49 = 50.83/x
  3. Step 3: Cross multiply
    122.97x = 184.49 × 50.83
  4. Step 4: Simplify right side
    122.97x = 9,377.37
  5. Step 5: Solve for x
    x = 9,377.37/122.97
  6. Step 6: Final answer
    x = 76.26

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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.