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Finding the Fourth Proportional to 139,103.00, 208,669.84 and 44,311.13

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Solution

The fourth proportional to 139,103.00, 208,669.84 and 44,311.13 is: 66,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,103.00 : 208,669.84 = 44,311.13 : x
  2. Step 2: Convert to fraction form
    139,103.00/208,669.84 = 44,311.13/x
  3. Step 3: Cross multiply
    139,103.00x = 208,669.84 × 44,311.13
  4. Step 4: Simplify right side
    139,103.00x = 9,246,396,818.22
  5. Step 5: Solve for x
    x = 9,246,396,818.22/139,103.00
  6. Step 6: Final answer
    x = 66,471.58

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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.