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Finding the Fourth Proportional to 192.10, 288.16 and 110.92

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Solution

The fourth proportional to 192.10, 288.16 and 110.92 is: 166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.10 : 288.16 = 110.92 : x
  2. Step 2: Convert to fraction form
    192.10/288.16 = 110.92/x
  3. Step 3: Cross multiply
    192.10x = 288.16 × 110.92
  4. Step 4: Simplify right side
    192.10x = 31,962.71
  5. Step 5: Solve for x
    x = 31,962.71/192.10
  6. Step 6: Final answer
    x = 166.39

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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.