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Finding the Fourth Proportional to 403,524.40, 605,027.40 and 166,961.20

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Solution

The fourth proportional to 403,524.40, 605,027.40 and 166,961.20 is: 250,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,524.40 : 605,027.40 = 166,961.20 : x
  2. Step 2: Convert to fraction form
    403,524.40/605,027.40 = 166,961.20/x
  3. Step 3: Cross multiply
    403,524.40x = 605,027.40 × 166,961.20
  4. Step 4: Simplify right side
    403,524.40x = 101,016,100,736.88
  5. Step 5: Solve for x
    x = 101,016,100,736.88/403,524.40
  6. Step 6: Final answer
    x = 250,334.55

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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.