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Finding the Fourth Proportional to 70,652.44, 106,231.20 and 65,173.60

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Solution

The fourth proportional to 70,652.44, 106,231.20 and 65,173.60 is: 97,993.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,652.44 : 106,231.20 = 65,173.60 : x
  2. Step 2: Convert to fraction form
    70,652.44/106,231.20 = 65,173.60/x
  3. Step 3: Cross multiply
    70,652.44x = 106,231.20 × 65,173.60
  4. Step 4: Simplify right side
    70,652.44x = 6,923,469,736.32
  5. Step 5: Solve for x
    x = 6,923,469,736.32/70,652.44
  6. Step 6: Final answer
    x = 97,993.36

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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.