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Finding the Fourth Proportional to 310.92, 466.40 and 174.03

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Solution

The fourth proportional to 310.92, 466.40 and 174.03 is: 261.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.92 : 466.40 = 174.03 : x
  2. Step 2: Convert to fraction form
    310.92/466.40 = 174.03/x
  3. Step 3: Cross multiply
    310.92x = 466.40 × 174.03
  4. Step 4: Simplify right side
    310.92x = 81,167.59
  5. Step 5: Solve for x
    x = 81,167.59/310.92
  6. Step 6: Final answer
    x = 261.06

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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.