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Finding the Fourth Proportional to 192.11, 265.11 and 164.57

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Solution

The fourth proportional to 192.11, 265.11 and 164.57 is: 227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.11 : 265.11 = 164.57 : x
  2. Step 2: Convert to fraction form
    192.11/265.11 = 164.57/x
  3. Step 3: Cross multiply
    192.11x = 265.11 × 164.57
  4. Step 4: Simplify right side
    192.11x = 43,629.15
  5. Step 5: Solve for x
    x = 43,629.15/192.11
  6. Step 6: Final answer
    x = 227.11

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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.