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Finding the Fourth Proportional to 269.99, 404.98 and 174.41

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Solution

The fourth proportional to 269.99, 404.98 and 174.41 is: 261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.99 : 404.98 = 174.41 : x
  2. Step 2: Convert to fraction form
    269.99/404.98 = 174.41/x
  3. Step 3: Cross multiply
    269.99x = 404.98 × 174.41
  4. Step 4: Simplify right side
    269.99x = 70,630.10
  5. Step 5: Solve for x
    x = 70,630.10/269.99
  6. Step 6: Final answer
    x = 261.61

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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.