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Finding the Fourth Proportional to 266.92, 400.50 and 104.68

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Solution

The fourth proportional to 266.92, 400.50 and 104.68 is: 157.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.92 : 400.50 = 104.68 : x
  2. Step 2: Convert to fraction form
    266.92/400.50 = 104.68/x
  3. Step 3: Cross multiply
    266.92x = 400.50 × 104.68
  4. Step 4: Simplify right side
    266.92x = 41,924.34
  5. Step 5: Solve for x
    x = 41,924.34/266.92
  6. Step 6: Final answer
    x = 157.07

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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.