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Finding the Fourth Proportional to 262.46, 361.77 and 196.94

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Solution

The fourth proportional to 262.46, 361.77 and 196.94 is: 271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.46 : 361.77 = 196.94 : x
  2. Step 2: Convert to fraction form
    262.46/361.77 = 196.94/x
  3. Step 3: Cross multiply
    262.46x = 361.77 × 196.94
  4. Step 4: Simplify right side
    262.46x = 71,246.98
  5. Step 5: Solve for x
    x = 71,246.98/262.46
  6. Step 6: Final answer
    x = 271.46

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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.