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Finding the Fourth Proportional to 202,814.20, 303,638.10 and 124,082.20

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Solution

The fourth proportional to 202,814.20, 303,638.10 and 124,082.20 is: 185,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,814.20 : 303,638.10 = 124,082.20 : x
  2. Step 2: Convert to fraction form
    202,814.20/303,638.10 = 124,082.20/x
  3. Step 3: Cross multiply
    202,814.20x = 303,638.10 × 124,082.20
  4. Step 4: Simplify right side
    202,814.20x = 37,676,083,451.82
  5. Step 5: Solve for x
    x = 37,676,083,451.82/202,814.20
  6. Step 6: Final answer
    x = 185,766.50

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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.