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Finding the Fourth Proportional to 139,041.99, 208,593.36 and 50,286.24

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Solution

The fourth proportional to 139,041.99, 208,593.36 and 50,286.24 is: 75,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,041.99 : 208,593.36 = 50,286.24 : x
  2. Step 2: Convert to fraction form
    139,041.99/208,593.36 = 50,286.24/x
  3. Step 3: Cross multiply
    139,041.99x = 208,593.36 × 50,286.24
  4. Step 4: Simplify right side
    139,041.99x = 10,489,375,763.37
  5. Step 5: Solve for x
    x = 10,489,375,763.37/139,041.99
  6. Step 6: Final answer
    x = 75,440.35

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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.