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Finding the Fourth Proportional to 70,866.72, 106,324.20 and 44,540.64

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Solution

The fourth proportional to 70,866.72, 106,324.20 and 44,540.64 is: 66,826.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,866.72 : 106,324.20 = 44,540.64 : x
  2. Step 2: Convert to fraction form
    70,866.72/106,324.20 = 44,540.64/x
  3. Step 3: Cross multiply
    70,866.72x = 106,324.20 × 44,540.64
  4. Step 4: Simplify right side
    70,866.72x = 4,735,747,915.49
  5. Step 5: Solve for x
    x = 4,735,747,915.49/70,866.72
  6. Step 6: Final answer
    x = 66,826.12

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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.