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Finding the Fourth Proportional to 292.95, 404.43 and 194.84

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Solution

The fourth proportional to 292.95, 404.43 and 194.84 is: 268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.95 : 404.43 = 194.84 : x
  2. Step 2: Convert to fraction form
    292.95/404.43 = 194.84/x
  3. Step 3: Cross multiply
    292.95x = 404.43 × 194.84
  4. Step 4: Simplify right side
    292.95x = 78,797.12
  5. Step 5: Solve for x
    x = 78,797.12/292.95
  6. Step 6: Final answer
    x = 268.98

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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.