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Finding the Fourth Proportional to 362,632.80, 543,819.60 and 125,983.20

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Solution

The fourth proportional to 362,632.80, 543,819.60 and 125,983.20 is: 188,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,632.80 : 543,819.60 = 125,983.20 : x
  2. Step 2: Convert to fraction form
    362,632.80/543,819.60 = 125,983.20/x
  3. Step 3: Cross multiply
    362,632.80x = 543,819.60 × 125,983.20
  4. Step 4: Simplify right side
    362,632.80x = 68,512,133,430.72
  5. Step 5: Solve for x
    x = 68,512,133,430.72/362,632.80
  6. Step 6: Final answer
    x = 188,929.78

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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.