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Finding the Fourth Proportional to 296.15, 443.96 and 167.81

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Solution

The fourth proportional to 296.15, 443.96 and 167.81 is: 251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.15 : 443.96 = 167.81 : x
  2. Step 2: Convert to fraction form
    296.15/443.96 = 167.81/x
  3. Step 3: Cross multiply
    296.15x = 443.96 × 167.81
  4. Step 4: Simplify right side
    296.15x = 74,501.83
  5. Step 5: Solve for x
    x = 74,501.83/296.15
  6. Step 6: Final answer
    x = 251.57

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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.