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Finding the Fourth Proportional to 250.92, 346.30 and 168

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Solution

The fourth proportional to 250.92, 346.30 and 168 is: 231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.92 : 346.30 = 168 : x
  2. Step 2: Convert to fraction form
    250.92/346.30 = 168/x
  3. Step 3: Cross multiply
    250.92x = 346.30 × 168
  4. Step 4: Simplify right side
    250.92x = 58,178.40
  5. Step 5: Solve for x
    x = 58,178.40/250.92
  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.