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Finding the Fourth Proportional to 135,245.25, 202,914.63 and 51,029.55

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Solution

The fourth proportional to 135,245.25, 202,914.63 and 51,029.55 is: 76,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,245.25 : 202,914.63 = 51,029.55 : x
  2. Step 2: Convert to fraction form
    135,245.25/202,914.63 = 51,029.55/x
  3. Step 3: Cross multiply
    135,245.25x = 202,914.63 × 51,029.55
  4. Step 4: Simplify right side
    135,245.25x = 10,354,642,257.32
  5. Step 5: Solve for x
    x = 10,354,642,257.32/135,245.25
  6. Step 6: Final answer
    x = 76,561.97

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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.