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Finding the Fourth Proportional to 199,632.96, 275,481.68 and 108,970.88

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Solution

The fourth proportional to 199,632.96, 275,481.68 and 108,970.88 is: 150,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,632.96 : 275,481.68 = 108,970.88 : x
  2. Step 2: Convert to fraction form
    199,632.96/275,481.68 = 108,970.88/x
  3. Step 3: Cross multiply
    199,632.96x = 275,481.68 × 108,970.88
  4. Step 4: Simplify right side
    199,632.96x = 30,019,481,093.48
  5. Step 5: Solve for x
    x = 30,019,481,093.48/199,632.96
  6. Step 6: Final answer
    x = 150,373.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.