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Finding the Fourth Proportional to 294.74, 442.11 and 165.56

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Solution

The fourth proportional to 294.74, 442.11 and 165.56 is: 248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.74 : 442.11 = 165.56 : x
  2. Step 2: Convert to fraction form
    294.74/442.11 = 165.56/x
  3. Step 3: Cross multiply
    294.74x = 442.11 × 165.56
  4. Step 4: Simplify right side
    294.74x = 73,195.73
  5. Step 5: Solve for x
    x = 73,195.73/294.74
  6. Step 6: Final answer
    x = 248.34

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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.