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Finding the Fourth Proportional to 193.92, 267 and 164.72

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Solution

The fourth proportional to 193.92, 267 and 164.72 is: 226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.92 : 267 = 164.72 : x
  2. Step 2: Convert to fraction form
    193.92/267 = 164.72/x
  3. Step 3: Cross multiply
    193.92x = 267 × 164.72
  4. Step 4: Simplify right side
    193.92x = 43,980.24
  5. Step 5: Solve for x
    x = 43,980.24/193.92
  6. Step 6: Final answer
    x = 226.80

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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.