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Finding the Fourth Proportional to 198,449.73, 297,715.55 and 65,337.93

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Solution

The fourth proportional to 198,449.73, 297,715.55 and 65,337.93 is: 98,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,449.73 : 297,715.55 = 65,337.93 : x
  2. Step 2: Convert to fraction form
    198,449.73/297,715.55 = 65,337.93/x
  3. Step 3: Cross multiply
    198,449.73x = 297,715.55 × 65,337.93
  4. Step 4: Simplify right side
    198,449.73x = 19,452,117,439.12
  5. Step 5: Solve for x
    x = 19,452,117,439.12/198,449.73
  6. Step 6: Final answer
    x = 98,020.38

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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.