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Finding the Fourth Proportional to 149,359.44, 206,116.08 and 82,291.44

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Solution

The fourth proportional to 149,359.44, 206,116.08 and 82,291.44 is: 113,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,359.44 : 206,116.08 = 82,291.44 : x
  2. Step 2: Convert to fraction form
    149,359.44/206,116.08 = 82,291.44/x
  3. Step 3: Cross multiply
    149,359.44x = 206,116.08 × 82,291.44
  4. Step 4: Simplify right side
    149,359.44x = 16,961,589,030.36
  5. Step 5: Solve for x
    x = 16,961,589,030.36/149,359.44
  6. Step 6: Final answer
    x = 113,562.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.