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Finding the Fourth Proportional to 121,548.39, 167,745.19 and 67,843.87

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Solution

The fourth proportional to 121,548.39, 167,745.19 and 67,843.87 is: 93,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,548.39 : 167,745.19 = 67,843.87 : x
  2. Step 2: Convert to fraction form
    121,548.39/167,745.19 = 67,843.87/x
  3. Step 3: Cross multiply
    121,548.39x = 167,745.19 × 67,843.87
  4. Step 4: Simplify right side
    121,548.39x = 11,380,482,863.49
  5. Step 5: Solve for x
    x = 11,380,482,863.49/121,548.39
  6. Step 6: Final answer
    x = 93,629.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.