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Finding the Fourth Proportional to 192.24, 288.66 and 166.26

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Solution

The fourth proportional to 192.24, 288.66 and 166.26 is: 249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.24 : 288.66 = 166.26 : x
  2. Step 2: Convert to fraction form
    192.24/288.66 = 166.26/x
  3. Step 3: Cross multiply
    192.24x = 288.66 × 166.26
  4. Step 4: Simplify right side
    192.24x = 47,992.61
  5. Step 5: Solve for x
    x = 47,992.61/192.24
  6. Step 6: Final answer
    x = 249.65

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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.