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Finding the Fourth Proportional to 138,969.00, 208,451.30 and 44,197.82

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Solution

The fourth proportional to 138,969.00, 208,451.30 and 44,197.82 is: 66,296.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,969.00 : 208,451.30 = 44,197.82 : x
  2. Step 2: Convert to fraction form
    138,969.00/208,451.30 = 44,197.82/x
  3. Step 3: Cross multiply
    138,969.00x = 208,451.30 × 44,197.82
  4. Step 4: Simplify right side
    138,969.00x = 9,213,091,772.92
  5. Step 5: Solve for x
    x = 9,213,091,772.92/138,969.00
  6. Step 6: Final answer
    x = 66,296.02

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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.