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Finding the Fourth Proportional to 192,893.80, 289,200.52 and 80,606.20

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Solution

The fourth proportional to 192,893.80, 289,200.52 and 80,606.20 is: 120,850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,893.80 : 289,200.52 = 80,606.20 : x
  2. Step 2: Convert to fraction form
    192,893.80/289,200.52 = 80,606.20/x
  3. Step 3: Cross multiply
    192,893.80x = 289,200.52 × 80,606.20
  4. Step 4: Simplify right side
    192,893.80x = 23,311,354,955.22
  5. Step 5: Solve for x
    x = 23,311,354,955.22/192,893.80
  6. Step 6: Final answer
    x = 120,850.72

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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.