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Finding the Fourth Proportional to 202,274.20, 303,411.30 and 69,158.80

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Solution

The fourth proportional to 202,274.20, 303,411.30 and 69,158.80 is: 103,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,274.20 : 303,411.30 = 69,158.80 : x
  2. Step 2: Convert to fraction form
    202,274.20/303,411.30 = 69,158.80/x
  3. Step 3: Cross multiply
    202,274.20x = 303,411.30 × 69,158.80
  4. Step 4: Simplify right side
    202,274.20x = 20,983,561,414.44
  5. Step 5: Solve for x
    x = 20,983,561,414.44/202,274.20
  6. Step 6: Final answer
    x = 103,738.20

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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.