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Finding the Fourth Proportional to 294.30, 441.50 and 111.82

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Solution

The fourth proportional to 294.30, 441.50 and 111.82 is: 167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.30 : 441.50 = 111.82 : x
  2. Step 2: Convert to fraction form
    294.30/441.50 = 111.82/x
  3. Step 3: Cross multiply
    294.30x = 441.50 × 111.82
  4. Step 4: Simplify right side
    294.30x = 49,368.53
  5. Step 5: Solve for x
    x = 49,368.53/294.30
  6. Step 6: Final answer
    x = 167.75

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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.