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Finding the Fourth Proportional to 139,210.44, 208,768.87 and 50,445.37

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Solution

The fourth proportional to 139,210.44, 208,768.87 and 50,445.37 is: 75,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,210.44 : 208,768.87 = 50,445.37 : x
  2. Step 2: Convert to fraction form
    139,210.44/208,768.87 = 50,445.37/x
  3. Step 3: Cross multiply
    139,210.44x = 208,768.87 × 50,445.37
  4. Step 4: Simplify right side
    139,210.44x = 10,531,422,891.63
  5. Step 5: Solve for x
    x = 10,531,422,891.63/139,210.44
  6. Step 6: Final answer
    x = 75,651.10

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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.