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Finding the Fourth Proportional to 311.44, 467.04 and 92.02

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Solution

The fourth proportional to 311.44, 467.04 and 92.02 is: 137.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.44 : 467.04 = 92.02 : x
  2. Step 2: Convert to fraction form
    311.44/467.04 = 92.02/x
  3. Step 3: Cross multiply
    311.44x = 467.04 × 92.02
  4. Step 4: Simplify right side
    311.44x = 42,977.02
  5. Step 5: Solve for x
    x = 42,977.02/311.44
  6. Step 6: Final answer
    x = 137.99

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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.