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Finding the Fourth Proportional to 339,944.20, 509,916.30 and 162,797.20

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Solution

The fourth proportional to 339,944.20, 509,916.30 and 162,797.20 is: 244,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,944.20 : 509,916.30 = 162,797.20 : x
  2. Step 2: Convert to fraction form
    339,944.20/509,916.30 = 162,797.20/x
  3. Step 3: Cross multiply
    339,944.20x = 509,916.30 × 162,797.20
  4. Step 4: Simplify right side
    339,944.20x = 83,012,945,874.36
  5. Step 5: Solve for x
    x = 83,012,945,874.36/339,944.20
  6. Step 6: Final answer
    x = 244,195.80

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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.