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Finding the Fourth Proportional to 192.44, 265.61 and 134.19

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Solution

The fourth proportional to 192.44, 265.61 and 134.19 is: 185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.44 : 265.61 = 134.19 : x
  2. Step 2: Convert to fraction form
    192.44/265.61 = 134.19/x
  3. Step 3: Cross multiply
    192.44x = 265.61 × 134.19
  4. Step 4: Simplify right side
    192.44x = 35,641.53
  5. Step 5: Solve for x
    x = 35,641.53/192.44
  6. Step 6: Final answer
    x = 185.21

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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.