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Finding the Fourth Proportional to 263.25, 363.31 and 146.84

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Solution

The fourth proportional to 263.25, 363.31 and 146.84 is: 202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.25 : 363.31 = 146.84 : x
  2. Step 2: Convert to fraction form
    263.25/363.31 = 146.84/x
  3. Step 3: Cross multiply
    263.25x = 363.31 × 146.84
  4. Step 4: Simplify right side
    263.25x = 53,346.26
  5. Step 5: Solve for x
    x = 53,346.26/263.25
  6. Step 6: Final answer
    x = 202.64

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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.