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Finding the Fourth Proportional to 269,603.91, 404,453.43 and 92,069.31

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Solution

The fourth proportional to 269,603.91, 404,453.43 and 92,069.31 is: 138,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,603.91 : 404,453.43 = 92,069.31 : x
  2. Step 2: Convert to fraction form
    269,603.91/404,453.43 = 92,069.31/x
  3. Step 3: Cross multiply
    269,603.91x = 404,453.43 × 92,069.31
  4. Step 4: Simplify right side
    269,603.91x = 37,237,748,227.23
  5. Step 5: Solve for x
    x = 37,237,748,227.23/269,603.91
  6. Step 6: Final answer
    x = 138,120.21

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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.