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Finding the Fourth Proportional to 269,757.90, 404,870.10 and 103,662.54

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Solution

The fourth proportional to 269,757.90, 404,870.10 and 103,662.54 is: 155,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,757.90 : 404,870.10 = 103,662.54 : x
  2. Step 2: Convert to fraction form
    269,757.90/404,870.10 = 103,662.54/x
  3. Step 3: Cross multiply
    269,757.90x = 404,870.10 × 103,662.54
  4. Step 4: Simplify right side
    269,757.90x = 41,969,862,936.05
  5. Step 5: Solve for x
    x = 41,969,862,936.05/269,757.90
  6. Step 6: Final answer
    x = 155,583.44

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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.