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Finding the Fourth Proportional to 192.68, 265.68 and 118.92

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Solution

The fourth proportional to 192.68, 265.68 and 118.92 is: 163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.68 : 265.68 = 118.92 : x
  2. Step 2: Convert to fraction form
    192.68/265.68 = 118.92/x
  3. Step 3: Cross multiply
    192.68x = 265.68 × 118.92
  4. Step 4: Simplify right side
    192.68x = 31,594.67
  5. Step 5: Solve for x
    x = 31,594.67/192.68
  6. Step 6: Final answer
    x = 163.97

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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.