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Finding the Fourth Proportional to 202,340.22, 303,543.30 and 75,990.30

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Solution

The fourth proportional to 202,340.22, 303,543.30 and 75,990.30 is: 113,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,340.22 : 303,543.30 = 75,990.30 : x
  2. Step 2: Convert to fraction form
    202,340.22/303,543.30 = 75,990.30/x
  3. Step 3: Cross multiply
    202,340.22x = 303,543.30 × 75,990.30
  4. Step 4: Simplify right side
    202,340.22x = 23,066,346,429.99
  5. Step 5: Solve for x
    x = 23,066,346,429.99/202,340.22
  6. Step 6: Final answer
    x = 113,997.83

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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.