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Finding the Fourth Proportional to 269,723.40, 404,585.10 and 92,171.40

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Solution

The fourth proportional to 269,723.40, 404,585.10 and 92,171.40 is: 138,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,723.40 : 404,585.10 = 92,171.40 : x
  2. Step 2: Convert to fraction form
    269,723.40/404,585.10 = 92,171.40/x
  3. Step 3: Cross multiply
    269,723.40x = 404,585.10 × 92,171.40
  4. Step 4: Simplify right side
    269,723.40x = 37,291,175,086.14
  5. Step 5: Solve for x
    x = 37,291,175,086.14/269,723.40
  6. Step 6: Final answer
    x = 138,257.10

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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.