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Finding the Fourth Proportional to 198,163.56, 297,182.90 and 65,012.80

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Solution

The fourth proportional to 198,163.56, 297,182.90 and 65,012.80 is: 97,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,163.56 : 297,182.90 = 65,012.80 : x
  2. Step 2: Convert to fraction form
    198,163.56/297,182.90 = 65,012.80/x
  3. Step 3: Cross multiply
    198,163.56x = 297,182.90 × 65,012.80
  4. Step 4: Simplify right side
    198,163.56x = 19,320,692,441.12
  5. Step 5: Solve for x
    x = 19,320,692,441.12/198,163.56
  6. Step 6: Final answer
    x = 97,498.71

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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.