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Finding the Fourth Proportional to 294.24, 441.33 and 131.79

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Solution

The fourth proportional to 294.24, 441.33 and 131.79 is: 197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.24 : 441.33 = 131.79 : x
  2. Step 2: Convert to fraction form
    294.24/441.33 = 131.79/x
  3. Step 3: Cross multiply
    294.24x = 441.33 × 131.79
  4. Step 4: Simplify right side
    294.24x = 58,162.88
  5. Step 5: Solve for x
    x = 58,162.88/294.24
  6. Step 6: Final answer
    x = 197.67

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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.