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Finding the Fourth Proportional to 403,796.60, 605,476.20 and 166,871.60

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Solution

The fourth proportional to 403,796.60, 605,476.20 and 166,871.60 is: 250,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,796.60 : 605,476.20 = 166,871.60 : x
  2. Step 2: Convert to fraction form
    403,796.60/605,476.20 = 166,871.60/x
  3. Step 3: Cross multiply
    403,796.60x = 605,476.20 × 166,871.60
  4. Step 4: Simplify right side
    403,796.60x = 101,036,782,255.92
  5. Step 5: Solve for x
    x = 101,036,782,255.92/403,796.60
  6. Step 6: Final answer
    x = 250,217.02

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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.