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Finding the Fourth Proportional to 69,940.60, 96,518.46 and 41,647.48

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Solution

The fourth proportional to 69,940.60, 96,518.46 and 41,647.48 is: 57,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,940.60 : 96,518.46 = 41,647.48 : x
  2. Step 2: Convert to fraction form
    69,940.60/96,518.46 = 41,647.48/x
  3. Step 3: Cross multiply
    69,940.60x = 96,518.46 × 41,647.48
  4. Step 4: Simplify right side
    69,940.60x = 4,019,750,632.48
  5. Step 5: Solve for x
    x = 4,019,750,632.48/69,940.60
  6. Step 6: Final answer
    x = 57,473.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.