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Finding the Fourth Proportional to 269,895.25, 404,843.39 and 70,215.31

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Solution

The fourth proportional to 269,895.25, 404,843.39 and 70,215.31 is: 105,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,895.25 : 404,843.39 = 70,215.31 : x
  2. Step 2: Convert to fraction form
    269,895.25/404,843.39 = 70,215.31/x
  3. Step 3: Cross multiply
    269,895.25x = 404,843.39 × 70,215.31
  4. Step 4: Simplify right side
    269,895.25x = 28,426,204,548.59
  5. Step 5: Solve for x
    x = 28,426,204,548.59/269,895.25
  6. Step 6: Final answer
    x = 105,323.10

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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.