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Finding the Fourth Proportional to 207,711.33, 311,619.53 and 57,951.56

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Solution

The fourth proportional to 207,711.33, 311,619.53 and 57,951.56 is: 86,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,711.33 : 311,619.53 = 57,951.56 : x
  2. Step 2: Convert to fraction form
    207,711.33/311,619.53 = 57,951.56/x
  3. Step 3: Cross multiply
    207,711.33x = 311,619.53 × 57,951.56
  4. Step 4: Simplify right side
    207,711.33x = 18,058,837,889.97
  5. Step 5: Solve for x
    x = 18,058,837,889.97/207,711.33
  6. Step 6: Final answer
    x = 86,942.00

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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.