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Finding the Fourth Proportional to 70,422.92, 105,563.26 and 44,146.08

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Solution

The fourth proportional to 70,422.92, 105,563.26 and 44,146.08 is: 66,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,422.92 : 105,563.26 = 44,146.08 : x
  2. Step 2: Convert to fraction form
    70,422.92/105,563.26 = 44,146.08/x
  3. Step 3: Cross multiply
    70,422.92x = 105,563.26 × 44,146.08
  4. Step 4: Simplify right side
    70,422.92x = 4,660,204,121.02
  5. Step 5: Solve for x
    x = 4,660,204,121.02/70,422.92
  6. Step 6: Final answer
    x = 66,174.54

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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.