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Finding the Fourth Proportional to 198,508.50, 273,941.73 and 109,084.50

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Solution

The fourth proportional to 198,508.50, 273,941.73 and 109,084.50 is: 150,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,508.50 : 273,941.73 = 109,084.50 : x
  2. Step 2: Convert to fraction form
    198,508.50/273,941.73 = 109,084.50/x
  3. Step 3: Cross multiply
    198,508.50x = 273,941.73 × 109,084.50
  4. Step 4: Simplify right side
    198,508.50x = 29,882,796,646.19
  5. Step 5: Solve for x
    x = 29,882,796,646.19/198,508.50
  6. Step 6: Final answer
    x = 150,536.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.