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Finding the Fourth Proportional to 192.14, 288.12 and 110.84

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Solution

The fourth proportional to 192.14, 288.12 and 110.84 is: 166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.14 : 288.12 = 110.84 : x
  2. Step 2: Convert to fraction form
    192.14/288.12 = 110.84/x
  3. Step 3: Cross multiply
    192.14x = 288.12 × 110.84
  4. Step 4: Simplify right side
    192.14x = 31,935.22
  5. Step 5: Solve for x
    x = 31,935.22/192.14
  6. Step 6: Final answer
    x = 166.21

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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.