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Finding the Fourth Proportional to 202,222.90, 303,370.80 and 83,906.20

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Solution

The fourth proportional to 202,222.90, 303,370.80 and 83,906.20 is: 125,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,222.90 : 303,370.80 = 83,906.20 : x
  2. Step 2: Convert to fraction form
    202,222.90/303,370.80 = 83,906.20/x
  3. Step 3: Cross multiply
    202,222.90x = 303,370.80 × 83,906.20
  4. Step 4: Simplify right side
    202,222.90x = 25,454,691,018.96
  5. Step 5: Solve for x
    x = 25,454,691,018.96/202,222.90
  6. Step 6: Final answer
    x = 125,874.42

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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.