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Finding the Fourth Proportional to 199,628.67, 275,491.74 and 108,988.46

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Solution

The fourth proportional to 199,628.67, 275,491.74 and 108,988.46 is: 150,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,628.67 : 275,491.74 = 108,988.46 : x
  2. Step 2: Convert to fraction form
    199,628.67/275,491.74 = 108,988.46/x
  3. Step 3: Cross multiply
    199,628.67x = 275,491.74 × 108,988.46
  4. Step 4: Simplify right side
    199,628.67x = 30,025,419,107.86
  5. Step 5: Solve for x
    x = 30,025,419,107.86/199,628.67
  6. Step 6: Final answer
    x = 150,406.35

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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.