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Finding the Fourth Proportional to 194.58, 268.44 and 116.94

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Solution

The fourth proportional to 194.58, 268.44 and 116.94 is: 161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.58 : 268.44 = 116.94 : x
  2. Step 2: Convert to fraction form
    194.58/268.44 = 116.94/x
  3. Step 3: Cross multiply
    194.58x = 268.44 × 116.94
  4. Step 4: Simplify right side
    194.58x = 31,391.37
  5. Step 5: Solve for x
    x = 31,391.37/194.58
  6. Step 6: Final answer
    x = 161.33

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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.