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Finding the Fourth Proportional to 198,626.37, 297,910.38 and 65,510.97

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Solution

The fourth proportional to 198,626.37, 297,910.38 and 65,510.97 is: 98,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,626.37 : 297,910.38 = 65,510.97 : x
  2. Step 2: Convert to fraction form
    198,626.37/297,910.38 = 65,510.97/x
  3. Step 3: Cross multiply
    198,626.37x = 297,910.38 × 65,510.97
  4. Step 4: Simplify right side
    198,626.37x = 19,516,397,966.87
  5. Step 5: Solve for x
    x = 19,516,397,966.87/198,626.37
  6. Step 6: Final answer
    x = 98,256.83

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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.