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Finding the Fourth Proportional to 57,940.40, 86,910.60 and 44,818.40

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Solution

The fourth proportional to 57,940.40, 86,910.60 and 44,818.40 is: 67,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,940.40 : 86,910.60 = 44,818.40 : x
  2. Step 2: Convert to fraction form
    57,940.40/86,910.60 = 44,818.40/x
  3. Step 3: Cross multiply
    57,940.40x = 86,910.60 × 44,818.40
  4. Step 4: Simplify right side
    57,940.40x = 3,895,194,035.04
  5. Step 5: Solve for x
    x = 3,895,194,035.04/57,940.40
  6. Step 6: Final answer
    x = 67,227.60

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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.