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Finding the Fourth Proportional to 269,262.40, 403,893.60 and 91,753.60

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Solution

The fourth proportional to 269,262.40, 403,893.60 and 91,753.60 is: 137,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,262.40 : 403,893.60 = 91,753.60 : x
  2. Step 2: Convert to fraction form
    269,262.40/403,893.60 = 91,753.60/x
  3. Step 3: Cross multiply
    269,262.40x = 403,893.60 × 91,753.60
  4. Step 4: Simplify right side
    269,262.40x = 37,058,691,816.96
  5. Step 5: Solve for x
    x = 37,058,691,816.96/269,262.40
  6. Step 6: Final answer
    x = 137,630.40

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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.