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Finding the Fourth Proportional to 68,203.80, 102,240.06 and 34,939.56

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Solution

The fourth proportional to 68,203.80, 102,240.06 and 34,939.56 is: 52,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,203.80 : 102,240.06 = 34,939.56 : x
  2. Step 2: Convert to fraction form
    68,203.80/102,240.06 = 34,939.56/x
  3. Step 3: Cross multiply
    68,203.80x = 102,240.06 × 34,939.56
  4. Step 4: Simplify right side
    68,203.80x = 3,572,222,710.77
  5. Step 5: Solve for x
    x = 3,572,222,710.77/68,203.80
  6. Step 6: Final answer
    x = 52,375.71

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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.