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Finding the Fourth Proportional to 194.84, 268.88 and 116.18

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Solution

The fourth proportional to 194.84, 268.88 and 116.18 is: 160.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.84 : 268.88 = 116.18 : x
  2. Step 2: Convert to fraction form
    194.84/268.88 = 116.18/x
  3. Step 3: Cross multiply
    194.84x = 268.88 × 116.18
  4. Step 4: Simplify right side
    194.84x = 31,238.48
  5. Step 5: Solve for x
    x = 31,238.48/194.84
  6. Step 6: Final answer
    x = 160.33

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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.