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Finding the Fourth Proportional to 138,525.56, 207,788.39 and 33,344.53

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Solution

The fourth proportional to 138,525.56, 207,788.39 and 33,344.53 is: 50,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,525.56 : 207,788.39 = 33,344.53 : x
  2. Step 2: Convert to fraction form
    138,525.56/207,788.39 = 33,344.53/x
  3. Step 3: Cross multiply
    138,525.56x = 207,788.39 × 33,344.53
  4. Step 4: Simplify right side
    138,525.56x = 6,928,605,642.86
  5. Step 5: Solve for x
    x = 6,928,605,642.86/138,525.56
  6. Step 6: Final answer
    x = 50,016.80

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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.