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Finding the Fourth Proportional to 139,340.90, 208,947.44 and 44,552.64

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Solution

The fourth proportional to 139,340.90, 208,947.44 and 44,552.64 is: 66,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,340.90 : 208,947.44 = 44,552.64 : x
  2. Step 2: Convert to fraction form
    139,340.90/208,947.44 = 44,552.64/x
  3. Step 3: Cross multiply
    139,340.90x = 208,947.44 × 44,552.64
  4. Step 4: Simplify right side
    139,340.90x = 9,309,160,073.24
  5. Step 5: Solve for x
    x = 9,309,160,073.24/139,340.90
  6. Step 6: Final answer
    x = 66,808.53

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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.