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Finding the Fourth Proportional to 196.16, 294.34 and 93.43

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Solution

The fourth proportional to 196.16, 294.34 and 93.43 is: 140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.16 : 294.34 = 93.43 : x
  2. Step 2: Convert to fraction form
    196.16/294.34 = 93.43/x
  3. Step 3: Cross multiply
    196.16x = 294.34 × 93.43
  4. Step 4: Simplify right side
    196.16x = 27,499.74
  5. Step 5: Solve for x
    x = 27,499.74/196.16
  6. Step 6: Final answer
    x = 140.19

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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.