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Finding the Fourth Proportional to 192.35, 264.78 and 167.75

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Solution

The fourth proportional to 192.35, 264.78 and 167.75 is: 230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.35 : 264.78 = 167.75 : x
  2. Step 2: Convert to fraction form
    192.35/264.78 = 167.75/x
  3. Step 3: Cross multiply
    192.35x = 264.78 × 167.75
  4. Step 4: Simplify right side
    192.35x = 44,416.65
  5. Step 5: Solve for x
    x = 44,416.65/192.35
  6. Step 6: Final answer
    x = 230.91

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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.