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Finding the Fourth Proportional to 135,969.70, 203,954.55 and 115,849.30

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Solution

The fourth proportional to 135,969.70, 203,954.55 and 115,849.30 is: 173,773.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,969.70 : 203,954.55 = 115,849.30 : x
  2. Step 2: Convert to fraction form
    135,969.70/203,954.55 = 115,849.30/x
  3. Step 3: Cross multiply
    135,969.70x = 203,954.55 × 115,849.30
  4. Step 4: Simplify right side
    135,969.70x = 23,627,991,849.32
  5. Step 5: Solve for x
    x = 23,627,991,849.32/135,969.70
  6. Step 6: Final answer
    x = 173,773.95

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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.