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Finding the Fourth Proportional to 207,905.73, 311,863.46 and 67,675.29

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Solution

The fourth proportional to 207,905.73, 311,863.46 and 67,675.29 is: 101,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.73 : 311,863.46 = 67,675.29 : x
  2. Step 2: Convert to fraction form
    207,905.73/311,863.46 = 67,675.29/x
  3. Step 3: Cross multiply
    207,905.73x = 311,863.46 × 67,675.29
  4. Step 4: Simplify right side
    207,905.73x = 21,105,450,095.90
  5. Step 5: Solve for x
    x = 21,105,450,095.90/207,905.73
  6. Step 6: Final answer
    x = 101,514.52

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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.