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Finding the Fourth Proportional to 139,385.21, 209,093.00 and 44,593.10

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Solution

The fourth proportional to 139,385.21, 209,093.00 and 44,593.10 is: 66,894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,385.21 : 209,093.00 = 44,593.10 : x
  2. Step 2: Convert to fraction form
    139,385.21/209,093.00 = 44,593.10/x
  3. Step 3: Cross multiply
    139,385.21x = 209,093.00 × 44,593.10
  4. Step 4: Simplify right side
    139,385.21x = 9,324,103,789.87
  5. Step 5: Solve for x
    x = 9,324,103,789.87/139,385.21
  6. Step 6: Final answer
    x = 66,894.50

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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.