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Finding the Fourth Proportional to 106,469.22, 159,441.39 and 66,928.26

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Solution

The fourth proportional to 106,469.22, 159,441.39 and 66,928.26 is: 100,227.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,469.22 : 159,441.39 = 66,928.26 : x
  2. Step 2: Convert to fraction form
    106,469.22/159,441.39 = 66,928.26/x
  3. Step 3: Cross multiply
    106,469.22x = 159,441.39 × 66,928.26
  4. Step 4: Simplify right side
    106,469.22x = 10,671,134,804.68
  5. Step 5: Solve for x
    x = 10,671,134,804.68/106,469.22
  6. Step 6: Final answer
    x = 100,227.42

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1.5x scale

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.