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Finding the Fourth Proportional to 263,809.80, 396,006.30 and 164,082.60

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Solution

The fourth proportional to 263,809.80, 396,006.30 and 164,082.60 is: 246,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,809.80 : 396,006.30 = 164,082.60 : x
  2. Step 2: Convert to fraction form
    263,809.80/396,006.30 = 164,082.60/x
  3. Step 3: Cross multiply
    263,809.80x = 396,006.30 × 164,082.60
  4. Step 4: Simplify right side
    263,809.80x = 64,977,743,320.38
  5. Step 5: Solve for x
    x = 64,977,743,320.38/263,809.80
  6. Step 6: Final answer
    x = 246,305.27

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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.