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Finding the Fourth Proportional to 139,357.01, 209,049.35 and 44,563.37

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Solution

The fourth proportional to 139,357.01, 209,049.35 and 44,563.37 is: 66,849.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,357.01 : 209,049.35 = 44,563.37 : x
  2. Step 2: Convert to fraction form
    139,357.01/209,049.35 = 44,563.37/x
  3. Step 3: Cross multiply
    139,357.01x = 209,049.35 × 44,563.37
  4. Step 4: Simplify right side
    139,357.01x = 9,315,943,806.47
  5. Step 5: Solve for x
    x = 9,315,943,806.47/139,357.01
  6. Step 6: Final answer
    x = 66,849.48

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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.