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Finding the Fourth Proportional to 194.94, 292.44 and 97.42

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Solution

The fourth proportional to 194.94, 292.44 and 97.42 is: 146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.94 : 292.44 = 97.42 : x
  2. Step 2: Convert to fraction form
    194.94/292.44 = 97.42/x
  3. Step 3: Cross multiply
    194.94x = 292.44 × 97.42
  4. Step 4: Simplify right side
    194.94x = 28,487.63
  5. Step 5: Solve for x
    x = 28,487.63/194.94
  6. Step 6: Final answer
    x = 146.14

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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.