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Finding the Fourth Proportional to 139,753.30, 209,642.10 and 44,993.02

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Solution

The fourth proportional to 139,753.30, 209,642.10 and 44,993.02 is: 67,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,753.30 : 209,642.10 = 44,993.02 : x
  2. Step 2: Convert to fraction form
    139,753.30/209,642.10 = 44,993.02/x
  3. Step 3: Cross multiply
    139,753.30x = 209,642.10 × 44,993.02
  4. Step 4: Simplify right side
    139,753.30x = 9,432,431,198.14
  5. Step 5: Solve for x
    x = 9,432,431,198.14/139,753.30
  6. Step 6: Final answer
    x = 67,493.44

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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.