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Finding the Fourth Proportional to 294.16, 441.48 and 111.61

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Solution

The fourth proportional to 294.16, 441.48 and 111.61 is: 167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.16 : 441.48 = 111.61 : x
  2. Step 2: Convert to fraction form
    294.16/441.48 = 111.61/x
  3. Step 3: Cross multiply
    294.16x = 441.48 × 111.61
  4. Step 4: Simplify right side
    294.16x = 49,273.58
  5. Step 5: Solve for x
    x = 49,273.58/294.16
  6. Step 6: Final answer
    x = 167.51

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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.