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Finding the Fourth Proportional to 192.38, 265.54 and 122.44

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Solution

The fourth proportional to 192.38, 265.54 and 122.44 is: 169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.38 : 265.54 = 122.44 : x
  2. Step 2: Convert to fraction form
    192.38/265.54 = 122.44/x
  3. Step 3: Cross multiply
    192.38x = 265.54 × 122.44
  4. Step 4: Simplify right side
    192.38x = 32,512.72
  5. Step 5: Solve for x
    x = 32,512.72/192.38
  6. Step 6: Final answer
    x = 169.00

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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.