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Finding the Fourth Proportional to 311.07, 466.67 and 94.64

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Solution

The fourth proportional to 311.07, 466.67 and 94.64 is: 141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.07 : 466.67 = 94.64 : x
  2. Step 2: Convert to fraction form
    311.07/466.67 = 94.64/x
  3. Step 3: Cross multiply
    311.07x = 466.67 × 94.64
  4. Step 4: Simplify right side
    311.07x = 44,165.91
  5. Step 5: Solve for x
    x = 44,165.91/311.07
  6. Step 6: Final answer
    x = 141.98

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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.