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Finding the Fourth Proportional to 183,900.20, 275,882.70 and 65,640.20

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Solution

The fourth proportional to 183,900.20, 275,882.70 and 65,640.20 is: 98,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,900.20 : 275,882.70 = 65,640.20 : x
  2. Step 2: Convert to fraction form
    183,900.20/275,882.70 = 65,640.20/x
  3. Step 3: Cross multiply
    183,900.20x = 275,882.70 × 65,640.20
  4. Step 4: Simplify right side
    183,900.20x = 18,108,995,604.54
  5. Step 5: Solve for x
    x = 18,108,995,604.54/183,900.20
  6. Step 6: Final answer
    x = 98,471.86

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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.