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Finding the Fourth Proportional to 294.38, 441.33 and 111.66

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Solution

The fourth proportional to 294.38, 441.33 and 111.66 is: 167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.38 : 441.33 = 111.66 : x
  2. Step 2: Convert to fraction form
    294.38/441.33 = 111.66/x
  3. Step 3: Cross multiply
    294.38x = 441.33 × 111.66
  4. Step 4: Simplify right side
    294.38x = 49,278.91
  5. Step 5: Solve for x
    x = 49,278.91/294.38
  6. Step 6: Final answer
    x = 167.40

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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.