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Finding the Fourth Proportional to 139,468.76, 209,198.28 and 44,697.54

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Solution

The fourth proportional to 139,468.76, 209,198.28 and 44,697.54 is: 67,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,468.76 : 209,198.28 = 44,697.54 : x
  2. Step 2: Convert to fraction form
    139,468.76/209,198.28 = 44,697.54/x
  3. Step 3: Cross multiply
    139,468.76x = 209,198.28 × 44,697.54
  4. Step 4: Simplify right side
    139,468.76x = 9,350,648,488.23
  5. Step 5: Solve for x
    x = 9,350,648,488.23/139,468.76
  6. Step 6: Final answer
    x = 67,044.75

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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.