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Finding the Fourth Proportional to 192,552.10, 288,674.55 and 81,652.90

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Solution

The fourth proportional to 192,552.10, 288,674.55 and 81,652.90 is: 122,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,552.10 : 288,674.55 = 81,652.90 : x
  2. Step 2: Convert to fraction form
    192,552.10/288,674.55 = 81,652.90/x
  3. Step 3: Cross multiply
    192,552.10x = 288,674.55 × 81,652.90
  4. Step 4: Simplify right side
    192,552.10x = 23,571,114,163.70
  5. Step 5: Solve for x
    x = 23,571,114,163.70/192,552.10
  6. Step 6: Final answer
    x = 122,414.21

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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.