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Finding the Fourth Proportional to 269,764.90, 404,647.35 and 92,212.90

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Solution

The fourth proportional to 269,764.90, 404,647.35 and 92,212.90 is: 138,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,764.90 : 404,647.35 = 92,212.90 : x
  2. Step 2: Convert to fraction form
    269,764.90/404,647.35 = 92,212.90/x
  3. Step 3: Cross multiply
    269,764.90x = 404,647.35 × 92,212.90
  4. Step 4: Simplify right side
    269,764.90x = 37,313,705,620.82
  5. Step 5: Solve for x
    x = 37,313,705,620.82/269,764.90
  6. Step 6: Final answer
    x = 138,319.35

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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.