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Finding the Fourth Proportional to 292.22, 403.26 and 167.88

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Solution

The fourth proportional to 292.22, 403.26 and 167.88 is: 231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.22 : 403.26 = 167.88 : x
  2. Step 2: Convert to fraction form
    292.22/403.26 = 167.88/x
  3. Step 3: Cross multiply
    292.22x = 403.26 × 167.88
  4. Step 4: Simplify right side
    292.22x = 67,699.29
  5. Step 5: Solve for x
    x = 67,699.29/292.22
  6. Step 6: Final answer
    x = 231.68

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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.