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Finding the Fourth Proportional to 292, 403 and 167.68

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Solution

The fourth proportional to 292, 403 and 167.68 is: 231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292 : 403 = 167.68 : x
  2. Step 2: Convert to fraction form
    292/403 = 167.68/x
  3. Step 3: Cross multiply
    292x = 403 × 167.68
  4. Step 4: Simplify right side
    292x = 67,575.04
  5. Step 5: Solve for x
    x = 67,575.04/292
  6. Step 6: Final answer
    x = 231.42

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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.