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Finding the Fourth Proportional to 192.24, 287.92 and 110.88

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Solution

The fourth proportional to 192.24, 287.92 and 110.88 is: 166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.24 : 287.92 = 110.88 : x
  2. Step 2: Convert to fraction form
    192.24/287.92 = 110.88/x
  3. Step 3: Cross multiply
    192.24x = 287.92 × 110.88
  4. Step 4: Simplify right side
    192.24x = 31,924.57
  5. Step 5: Solve for x
    x = 31,924.57/192.24
  6. Step 6: Final answer
    x = 166.07

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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.