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Finding the Fourth Proportional to 292.48, 403.66 and 194.44

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Solution

The fourth proportional to 292.48, 403.66 and 194.44 is: 268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.48 : 403.66 = 194.44 : x
  2. Step 2: Convert to fraction form
    292.48/403.66 = 194.44/x
  3. Step 3: Cross multiply
    292.48x = 403.66 × 194.44
  4. Step 4: Simplify right side
    292.48x = 78,487.65
  5. Step 5: Solve for x
    x = 78,487.65/292.48
  6. Step 6: Final answer
    x = 268.35

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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.