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Finding the Fourth Proportional to 403,350.40, 605,025.60 and 166,862.80

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Solution

The fourth proportional to 403,350.40, 605,025.60 and 166,862.80 is: 250,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,350.40 : 605,025.60 = 166,862.80 : x
  2. Step 2: Convert to fraction form
    403,350.40/605,025.60 = 166,862.80/x
  3. Step 3: Cross multiply
    403,350.40x = 605,025.60 × 166,862.80
  4. Step 4: Simplify right side
    403,350.40x = 100,956,265,687.68
  5. Step 5: Solve for x
    x = 100,956,265,687.68/403,350.40
  6. Step 6: Final answer
    x = 250,294.20

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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.