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Finding the Fourth Proportional to 263.25, 363.30 and 159.75

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Solution

The fourth proportional to 263.25, 363.30 and 159.75 is: 220.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.25 : 363.30 = 159.75 : x
  2. Step 2: Convert to fraction form
    263.25/363.30 = 159.75/x
  3. Step 3: Cross multiply
    263.25x = 363.30 × 159.75
  4. Step 4: Simplify right side
    263.25x = 58,037.18
  5. Step 5: Solve for x
    x = 58,037.18/263.25
  6. Step 6: Final answer
    x = 220.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.