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Finding the Fourth Proportional to 269,586.71, 404,431.91 and 103,361.75

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Solution

The fourth proportional to 269,586.71, 404,431.91 and 103,361.75 is: 155,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,586.71 : 404,431.91 = 103,361.75 : x
  2. Step 2: Convert to fraction form
    269,586.71/404,431.91 = 103,361.75/x
  3. Step 3: Cross multiply
    269,586.71x = 404,431.91 × 103,361.75
  4. Step 4: Simplify right side
    269,586.71x = 41,802,789,456.63
  5. Step 5: Solve for x
    x = 41,802,789,456.63/269,586.71
  6. Step 6: Final answer
    x = 155,062.50

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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.