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Finding the Fourth Proportional to 292.26, 403.30 and 167.92

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Solution

The fourth proportional to 292.26, 403.30 and 167.92 is: 231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.26 : 403.30 = 167.92 : x
  2. Step 2: Convert to fraction form
    292.26/403.30 = 167.92/x
  3. Step 3: Cross multiply
    292.26x = 403.30 × 167.92
  4. Step 4: Simplify right side
    292.26x = 67,722.14
  5. Step 5: Solve for x
    x = 67,722.14/292.26
  6. Step 6: Final answer
    x = 231.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.