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Finding the Fourth Proportional to 196.39, 294.44 and 135.35

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Solution

The fourth proportional to 196.39, 294.44 and 135.35 is: 202.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.39 : 294.44 = 135.35 : x
  2. Step 2: Convert to fraction form
    196.39/294.44 = 135.35/x
  3. Step 3: Cross multiply
    196.39x = 294.44 × 135.35
  4. Step 4: Simplify right side
    196.39x = 39,850.31
  5. Step 5: Solve for x
    x = 39,850.31/196.39
  6. Step 6: Final answer
    x = 202.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.