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Finding the Fourth Proportional to 207,712.33, 311,621.03 and 57,952.56

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Solution

The fourth proportional to 207,712.33, 311,621.03 and 57,952.56 is: 86,943.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,712.33 : 311,621.03 = 57,952.56 : x
  2. Step 2: Convert to fraction form
    207,712.33/311,621.03 = 57,952.56/x
  3. Step 3: Cross multiply
    207,712.33x = 311,621.03 × 57,952.56
  4. Step 4: Simplify right side
    207,712.33x = 18,059,236,438.34
  5. Step 5: Solve for x
    x = 18,059,236,438.34/207,712.33
  6. Step 6: Final answer
    x = 86,943.50

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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.