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Finding the Fourth Proportional to 192.22, 264.92 and 148.66

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Solution

The fourth proportional to 192.22, 264.92 and 148.66 is: 204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.22 : 264.92 = 148.66 : x
  2. Step 2: Convert to fraction form
    192.22/264.92 = 148.66/x
  3. Step 3: Cross multiply
    192.22x = 264.92 × 148.66
  4. Step 4: Simplify right side
    192.22x = 39,383.01
  5. Step 5: Solve for x
    x = 39,383.01/192.22
  6. Step 6: Final answer
    x = 204.89

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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.