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Finding the Fourth Proportional to 269,685.44, 404,585.76 and 103,472

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Solution

The fourth proportional to 269,685.44, 404,585.76 and 103,472 is: 155,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,685.44 : 404,585.76 = 103,472 : x
  2. Step 2: Convert to fraction form
    269,685.44/404,585.76 = 103,472/x
  3. Step 3: Cross multiply
    269,685.44x = 404,585.76 × 103,472
  4. Step 4: Simplify right side
    269,685.44x = 41,863,297,758.72
  5. Step 5: Solve for x
    x = 41,863,297,758.72/269,685.44
  6. Step 6: Final answer
    x = 155,230.10

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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.