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Finding the Fourth Proportional to 207,998.34, 311,806.17 and 113,089.86

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Solution

The fourth proportional to 207,998.34, 311,806.17 and 113,089.86 is: 169,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,998.34 : 311,806.17 = 113,089.86 : x
  2. Step 2: Convert to fraction form
    207,998.34/311,806.17 = 113,089.86/x
  3. Step 3: Cross multiply
    207,998.34x = 311,806.17 × 113,089.86
  4. Step 4: Simplify right side
    207,998.34x = 35,262,116,112.44
  5. Step 5: Solve for x
    x = 35,262,116,112.44/207,998.34
  6. Step 6: Final answer
    x = 169,530.76

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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.