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Finding the Fourth Proportional to 96,863.80, 144,906.90 and 83,860.60

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Solution

The fourth proportional to 96,863.80, 144,906.90 and 83,860.60 is: 125,454.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,863.80 : 144,906.90 = 83,860.60 : x
  2. Step 2: Convert to fraction form
    96,863.80/144,906.90 = 83,860.60/x
  3. Step 3: Cross multiply
    96,863.80x = 144,906.90 × 83,860.60
  4. Step 4: Simplify right side
    96,863.80x = 12,151,979,578.14
  5. Step 5: Solve for x
    x = 12,151,979,578.14/96,863.80
  6. Step 6: Final answer
    x = 125,454.29

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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.