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Finding the Fourth Proportional to 264.11, 395.98 and 109.99

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Solution

The fourth proportional to 264.11, 395.98 and 109.99 is: 164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.11 : 395.98 = 109.99 : x
  2. Step 2: Convert to fraction form
    264.11/395.98 = 109.99/x
  3. Step 3: Cross multiply
    264.11x = 395.98 × 109.99
  4. Step 4: Simplify right side
    264.11x = 43,553.84
  5. Step 5: Solve for x
    x = 43,553.84/264.11
  6. Step 6: Final answer
    x = 164.91

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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.