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Finding the Fourth Proportional to 198,993.15, 298,489.73 and 65,893.95

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Solution

The fourth proportional to 198,993.15, 298,489.73 and 65,893.95 is: 98,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,993.15 : 298,489.73 = 65,893.95 : x
  2. Step 2: Convert to fraction form
    198,993.15/298,489.73 = 65,893.95/x
  3. Step 3: Cross multiply
    198,993.15x = 298,489.73 × 65,893.95
  4. Step 4: Simplify right side
    198,993.15x = 19,668,667,014.66
  5. Step 5: Solve for x
    x = 19,668,667,014.66/198,993.15
  6. Step 6: Final answer
    x = 98,840.93

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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.