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Finding the Fourth Proportional to 292.26, 403.40 and 167.98

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Solution

The fourth proportional to 292.26, 403.40 and 167.98 is: 231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.26 : 403.40 = 167.98 : x
  2. Step 2: Convert to fraction form
    292.26/403.40 = 167.98/x
  3. Step 3: Cross multiply
    292.26x = 403.40 × 167.98
  4. Step 4: Simplify right side
    292.26x = 67,763.13
  5. Step 5: Solve for x
    x = 67,763.13/292.26
  6. Step 6: Final answer
    x = 231.86

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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.