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Finding the Fourth Proportional to 192.12, 264.66 and 148.44

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Solution

The fourth proportional to 192.12, 264.66 and 148.44 is: 204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.12 : 264.66 = 148.44 : x
  2. Step 2: Convert to fraction form
    192.12/264.66 = 148.44/x
  3. Step 3: Cross multiply
    192.12x = 264.66 × 148.44
  4. Step 4: Simplify right side
    192.12x = 39,286.13
  5. Step 5: Solve for x
    x = 39,286.13/192.12
  6. Step 6: Final answer
    x = 204.49

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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.