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Finding the Fourth Proportional to 184.48, 254.36 and 122.24

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Solution

The fourth proportional to 184.48, 254.36 and 122.24 is: 168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.48 : 254.36 = 122.24 : x
  2. Step 2: Convert to fraction form
    184.48/254.36 = 122.24/x
  3. Step 3: Cross multiply
    184.48x = 254.36 × 122.24
  4. Step 4: Simplify right side
    184.48x = 31,092.97
  5. Step 5: Solve for x
    x = 31,092.97/184.48
  6. Step 6: Final answer
    x = 168.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.