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Finding the Fourth Proportional to 207,710.33, 311,618.03 and 57,950.56

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Solution

The fourth proportional to 207,710.33, 311,618.03 and 57,950.56 is: 86,940.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,710.33 : 311,618.03 = 57,950.56 : x
  2. Step 2: Convert to fraction form
    207,710.33/311,618.03 = 57,950.56/x
  3. Step 3: Cross multiply
    207,710.33x = 311,618.03 × 57,950.56
  4. Step 4: Simplify right side
    207,710.33x = 18,058,438,275.80
  5. Step 5: Solve for x
    x = 18,058,438,275.80/207,710.33
  6. Step 6: Final answer
    x = 86,940.49

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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.