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Finding the Fourth Proportional to 192,251.45, 288,418.08 and 65,857.80

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Solution

The fourth proportional to 192,251.45, 288,418.08 and 65,857.80 is: 98,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,251.45 : 288,418.08 = 65,857.80 : x
  2. Step 2: Convert to fraction form
    192,251.45/288,418.08 = 65,857.80/x
  3. Step 3: Cross multiply
    192,251.45x = 288,418.08 × 65,857.80
  4. Step 4: Simplify right side
    192,251.45x = 18,994,580,229.02
  5. Step 5: Solve for x
    x = 18,994,580,229.02/192,251.45
  6. Step 6: Final answer
    x = 98,800.72

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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.