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Finding the Fourth Proportional to 96,016.80, 144,025.20 and 86,199.60

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Solution

The fourth proportional to 96,016.80, 144,025.20 and 86,199.60 is: 129,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,016.80 : 144,025.20 = 86,199.60 : x
  2. Step 2: Convert to fraction form
    96,016.80/144,025.20 = 86,199.60/x
  3. Step 3: Cross multiply
    96,016.80x = 144,025.20 × 86,199.60
  4. Step 4: Simplify right side
    96,016.80x = 12,414,914,629.92
  5. Step 5: Solve for x
    x = 12,414,914,629.92/96,016.80
  6. Step 6: Final answer
    x = 129,299.40

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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.