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Finding the Fourth Proportional to 192.32, 265.41 and 118.58

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Solution

The fourth proportional to 192.32, 265.41 and 118.58 is: 163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.32 : 265.41 = 118.58 : x
  2. Step 2: Convert to fraction form
    192.32/265.41 = 118.58/x
  3. Step 3: Cross multiply
    192.32x = 265.41 × 118.58
  4. Step 4: Simplify right side
    192.32x = 31,472.32
  5. Step 5: Solve for x
    x = 31,472.32/192.32
  6. Step 6: Final answer
    x = 163.65

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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.