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Finding the Fourth Proportional to 184.34, 254.46 and 122.26

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Solution

The fourth proportional to 184.34, 254.46 and 122.26 is: 168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.34 : 254.46 = 122.26 : x
  2. Step 2: Convert to fraction form
    184.34/254.46 = 122.26/x
  3. Step 3: Cross multiply
    184.34x = 254.46 × 122.26
  4. Step 4: Simplify right side
    184.34x = 31,110.28
  5. Step 5: Solve for x
    x = 31,110.28/184.34
  6. Step 6: Final answer
    x = 168.77

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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.