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Finding the Fourth Proportional to 138,474.98, 207,712.48 and 33,293.94

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Solution

The fourth proportional to 138,474.98, 207,712.48 and 33,293.94 is: 49,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,474.98 : 207,712.48 = 33,293.94 : x
  2. Step 2: Convert to fraction form
    138,474.98/207,712.48 = 33,293.94/x
  3. Step 3: Cross multiply
    138,474.98x = 207,712.48 × 33,293.94
  4. Step 4: Simplify right side
    138,474.98x = 6,915,566,846.37
  5. Step 5: Solve for x
    x = 6,915,566,846.37/138,474.98
  6. Step 6: Final answer
    x = 49,940.91

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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.