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Finding the Fourth Proportional to 75,137.56, 112,723.26 and 25,220.44

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Solution

The fourth proportional to 75,137.56, 112,723.26 and 25,220.44 is: 37,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.56 : 112,723.26 = 25,220.44 : x
  2. Step 2: Convert to fraction form
    75,137.56/112,723.26 = 25,220.44/x
  3. Step 3: Cross multiply
    75,137.56x = 112,723.26 × 25,220.44
  4. Step 4: Simplify right side
    75,137.56x = 2,842,930,215.43
  5. Step 5: Solve for x
    x = 2,842,930,215.43/75,137.56
  6. Step 6: Final answer
    x = 37,836.34

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1.5x scale

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.