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Finding the Fourth Proportional to 202,118.60, 303,221.10 and 61,891.40

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Solution

The fourth proportional to 202,118.60, 303,221.10 and 61,891.40 is: 92,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,118.60 : 303,221.10 = 61,891.40 : x
  2. Step 2: Convert to fraction form
    202,118.60/303,221.10 = 61,891.40/x
  3. Step 3: Cross multiply
    202,118.60x = 303,221.10 × 61,891.40
  4. Step 4: Simplify right side
    202,118.60x = 18,766,778,388.54
  5. Step 5: Solve for x
    x = 18,766,778,388.54/202,118.60
  6. Step 6: Final answer
    x = 92,850.33

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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.