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Finding the Fourth Proportional to 101,753.36, 140,422.50 and 61,474.34

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Solution

The fourth proportional to 101,753.36, 140,422.50 and 61,474.34 is: 84,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,753.36 : 140,422.50 = 61,474.34 : x
  2. Step 2: Convert to fraction form
    101,753.36/140,422.50 = 61,474.34/x
  3. Step 3: Cross multiply
    101,753.36x = 140,422.50 × 61,474.34
  4. Step 4: Simplify right side
    101,753.36x = 8,632,380,508.65
  5. Step 5: Solve for x
    x = 8,632,380,508.65/101,753.36
  6. Step 6: Final answer
    x = 84,836.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.