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Finding the Fourth Proportional to 269,308.02, 404,021.10 and 79,783.19

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Solution

The fourth proportional to 269,308.02, 404,021.10 and 79,783.19 is: 119,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,308.02 : 404,021.10 = 79,783.19 : x
  2. Step 2: Convert to fraction form
    269,308.02/404,021.10 = 79,783.19/x
  3. Step 3: Cross multiply
    269,308.02x = 404,021.10 × 79,783.19
  4. Step 4: Simplify right side
    269,308.02x = 32,234,093,578.92
  5. Step 5: Solve for x
    x = 32,234,093,578.92/269,308.02
  6. Step 6: Final answer
    x = 119,692.29

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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.