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Finding the Fourth Proportional to 194.56, 268.59 and 136.24

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Solution

The fourth proportional to 194.56, 268.59 and 136.24 is: 188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.56 : 268.59 = 136.24 : x
  2. Step 2: Convert to fraction form
    194.56/268.59 = 136.24/x
  3. Step 3: Cross multiply
    194.56x = 268.59 × 136.24
  4. Step 4: Simplify right side
    194.56x = 36,592.70
  5. Step 5: Solve for x
    x = 36,592.70/194.56
  6. Step 6: Final answer
    x = 188.08

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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.