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Finding the Fourth Proportional to 294.42, 441.64 and 111.84

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Solution

The fourth proportional to 294.42, 441.64 and 111.84 is: 167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.42 : 441.64 = 111.84 : x
  2. Step 2: Convert to fraction form
    294.42/441.64 = 111.84/x
  3. Step 3: Cross multiply
    294.42x = 441.64 × 111.84
  4. Step 4: Simplify right side
    294.42x = 49,393.02
  5. Step 5: Solve for x
    x = 49,393.02/294.42
  6. Step 6: Final answer
    x = 167.76

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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.