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Finding the Fourth Proportional to 207,902.73, 311,858.96 and 67,672.29

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Solution

The fourth proportional to 207,902.73, 311,858.96 and 67,672.29 is: 101,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,902.73 : 311,858.96 = 67,672.29 : x
  2. Step 2: Convert to fraction form
    207,902.73/311,858.96 = 67,672.29/x
  3. Step 3: Cross multiply
    207,902.73x = 311,858.96 × 67,672.29
  4. Step 4: Simplify right side
    207,902.73x = 21,104,209,641.86
  5. Step 5: Solve for x
    x = 21,104,209,641.86/207,902.73
  6. Step 6: Final answer
    x = 101,510.02

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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.