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Finding the Fourth Proportional to 246.67, 369.70 and 178.43

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Solution

The fourth proportional to 246.67, 369.70 and 178.43 is: 267.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.67 : 369.70 = 178.43 : x
  2. Step 2: Convert to fraction form
    246.67/369.70 = 178.43/x
  3. Step 3: Cross multiply
    246.67x = 369.70 × 178.43
  4. Step 4: Simplify right side
    246.67x = 65,963.28
  5. Step 5: Solve for x
    x = 65,963.28/246.67
  6. Step 6: Final answer
    x = 267.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.