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Finding the Fourth Proportional to 269,765.40, 404,648.10 and 92,245.80

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Solution

The fourth proportional to 269,765.40, 404,648.10 and 92,245.80 is: 138,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,765.40 : 404,648.10 = 92,245.80 : x
  2. Step 2: Convert to fraction form
    269,765.40/404,648.10 = 92,245.80/x
  3. Step 3: Cross multiply
    269,765.40x = 404,648.10 × 92,245.80
  4. Step 4: Simplify right side
    269,765.40x = 37,327,087,702.98
  5. Step 5: Solve for x
    x = 37,327,087,702.98/269,765.40
  6. Step 6: Final answer
    x = 138,368.70

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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.