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Finding the Fourth Proportional to 70,739.55, 106,043.37 and 48,563.37

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Solution

The fourth proportional to 70,739.55, 106,043.37 and 48,563.37 is: 72,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.55 : 106,043.37 = 48,563.37 : x
  2. Step 2: Convert to fraction form
    70,739.55/106,043.37 = 48,563.37/x
  3. Step 3: Cross multiply
    70,739.55x = 106,043.37 × 48,563.37
  4. Step 4: Simplify right side
    70,739.55x = 5,149,823,413.36
  5. Step 5: Solve for x
    x = 5,149,823,413.36/70,739.55
  6. Step 6: Final answer
    x = 72,799.78

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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.