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Finding the Fourth Proportional to 139,086.40, 208,620.96 and 44,314.24

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Solution

The fourth proportional to 139,086.40, 208,620.96 and 44,314.24 is: 66,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,086.40 : 208,620.96 = 44,314.24 : x
  2. Step 2: Convert to fraction form
    139,086.40/208,620.96 = 44,314.24/x
  3. Step 3: Cross multiply
    139,086.40x = 208,620.96 × 44,314.24
  4. Step 4: Simplify right side
    139,086.40x = 9,244,879,290.47
  5. Step 5: Solve for x
    x = 9,244,879,290.47/139,086.40
  6. Step 6: Final answer
    x = 66,468.61

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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.