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Finding the Fourth Proportional to 139,067.84, 208,532.76 and 44,285.67

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Solution

The fourth proportional to 139,067.84, 208,532.76 and 44,285.67 is: 66,406.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,067.84 : 208,532.76 = 44,285.67 : x
  2. Step 2: Convert to fraction form
    139,067.84/208,532.76 = 44,285.67/x
  3. Step 3: Cross multiply
    139,067.84x = 208,532.76 × 44,285.67
  4. Step 4: Simplify right side
    139,067.84x = 9,235,012,772.12
  5. Step 5: Solve for x
    x = 9,235,012,772.12/139,067.84
  6. Step 6: Final answer
    x = 66,406.53

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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.