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Finding the Fourth Proportional to 198,613.68, 297,857.25 and 65,469.12

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Solution

The fourth proportional to 198,613.68, 297,857.25 and 65,469.12 is: 98,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,613.68 : 297,857.25 = 65,469.12 : x
  2. Step 2: Convert to fraction form
    198,613.68/297,857.25 = 65,469.12/x
  3. Step 3: Cross multiply
    198,613.68x = 297,857.25 × 65,469.12
  4. Step 4: Simplify right side
    198,613.68x = 19,500,452,043.12
  5. Step 5: Solve for x
    x = 19,500,452,043.12/198,613.68
  6. Step 6: Final answer
    x = 98,182.82

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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.