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Finding the Fourth Proportional to 196.64, 294.74 and 93.98

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Solution

The fourth proportional to 196.64, 294.74 and 93.98 is: 140.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.64 : 294.74 = 93.98 : x
  2. Step 2: Convert to fraction form
    196.64/294.74 = 93.98/x
  3. Step 3: Cross multiply
    196.64x = 294.74 × 93.98
  4. Step 4: Simplify right side
    196.64x = 27,699.67
  5. Step 5: Solve for x
    x = 27,699.67/196.64
  6. Step 6: Final answer
    x = 140.86

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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.