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Finding the Fourth Proportional to 262.22, 361.92 and 162.66

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Solution

The fourth proportional to 262.22, 361.92 and 162.66 is: 224.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.22 : 361.92 = 162.66 : x
  2. Step 2: Convert to fraction form
    262.22/361.92 = 162.66/x
  3. Step 3: Cross multiply
    262.22x = 361.92 × 162.66
  4. Step 4: Simplify right side
    262.22x = 58,869.91
  5. Step 5: Solve for x
    x = 58,869.91/262.22
  6. Step 6: Final answer
    x = 224.51

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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.