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Finding the Fourth Proportional to 198,188.94, 273,422.88 and 113,260.44

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Solution

The fourth proportional to 198,188.94, 273,422.88 and 113,260.44 is: 156,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,188.94 : 273,422.88 = 113,260.44 : x
  2. Step 2: Convert to fraction form
    198,188.94/273,422.88 = 113,260.44/x
  3. Step 3: Cross multiply
    198,188.94x = 273,422.88 × 113,260.44
  4. Step 4: Simplify right side
    198,188.94x = 30,967,995,694.87
  5. Step 5: Solve for x
    x = 30,967,995,694.87/198,188.94
  6. Step 6: Final answer
    x = 156,254.91

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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.