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Finding the Fourth Proportional to 269,586.84, 404,432.09 and 103,361.88

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Solution

The fourth proportional to 269,586.84, 404,432.09 and 103,361.88 is: 155,062.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,586.84 : 404,432.09 = 103,361.88 : x
  2. Step 2: Convert to fraction form
    269,586.84/404,432.09 = 103,361.88/x
  3. Step 3: Cross multiply
    269,586.84x = 404,432.09 × 103,361.88
  4. Step 4: Simplify right side
    269,586.84x = 41,802,859,390.97
  5. Step 5: Solve for x
    x = 41,802,859,390.97/269,586.84
  6. Step 6: Final answer
    x = 155,062.69

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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.