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Finding the Fourth Proportional to 45,856.80, 68,785.20 and 44,107.20

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Solution

The fourth proportional to 45,856.80, 68,785.20 and 44,107.20 is: 66,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,856.80 : 68,785.20 = 44,107.20 : x
  2. Step 2: Convert to fraction form
    45,856.80/68,785.20 = 44,107.20/x
  3. Step 3: Cross multiply
    45,856.80x = 68,785.20 × 44,107.20
  4. Step 4: Simplify right side
    45,856.80x = 3,033,922,573.44
  5. Step 5: Solve for x
    x = 3,033,922,573.44/45,856.80
  6. Step 6: Final answer
    x = 66,160.80

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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.