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Finding the Fourth Proportional to 198,170.99, 297,287.46 and 65,020.96

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Solution

The fourth proportional to 198,170.99, 297,287.46 and 65,020.96 is: 97,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,170.99 : 297,287.46 = 65,020.96 : x
  2. Step 2: Convert to fraction form
    198,170.99/297,287.46 = 65,020.96/x
  3. Step 3: Cross multiply
    198,170.99x = 297,287.46 × 65,020.96
  4. Step 4: Simplify right side
    198,170.99x = 19,329,916,416.77
  5. Step 5: Solve for x
    x = 19,329,916,416.77/198,170.99
  6. Step 6: Final answer
    x = 97,541.61

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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.