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Finding the Fourth Proportional to 269,705.60, 404,558.40 and 92,218.40

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Solution

The fourth proportional to 269,705.60, 404,558.40 and 92,218.40 is: 138,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,705.60 : 404,558.40 = 92,218.40 : x
  2. Step 2: Convert to fraction form
    269,705.60/404,558.40 = 92,218.40/x
  3. Step 3: Cross multiply
    269,705.60x = 404,558.40 × 92,218.40
  4. Step 4: Simplify right side
    269,705.60x = 37,307,728,354.56
  5. Step 5: Solve for x
    x = 37,307,728,354.56/269,705.60
  6. Step 6: Final answer
    x = 138,327.60

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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.