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Finding the Fourth Proportional to 139,181.76, 208,675.44 and 44,380.44

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Solution

The fourth proportional to 139,181.76, 208,675.44 and 44,380.44 is: 66,539.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,181.76 : 208,675.44 = 44,380.44 : x
  2. Step 2: Convert to fraction form
    139,181.76/208,675.44 = 44,380.44/x
  3. Step 3: Cross multiply
    139,181.76x = 208,675.44 × 44,380.44
  4. Step 4: Simplify right side
    139,181.76x = 9,261,107,844.39
  5. Step 5: Solve for x
    x = 9,261,107,844.39/139,181.76
  6. Step 6: Final answer
    x = 66,539.67

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1.5x scale

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.