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Finding the Fourth Proportional to 138,932.98, 208,399.98 and 33,751.95

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Solution

The fourth proportional to 138,932.98, 208,399.98 and 33,751.95 is: 50,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,932.98 : 208,399.98 = 33,751.95 : x
  2. Step 2: Convert to fraction form
    138,932.98/208,399.98 = 33,751.95/x
  3. Step 3: Cross multiply
    138,932.98x = 208,399.98 × 33,751.95
  4. Step 4: Simplify right side
    138,932.98x = 7,033,905,704.96
  5. Step 5: Solve for x
    x = 7,033,905,704.96/138,932.98
  6. Step 6: Final answer
    x = 50,628.05

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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.