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Finding the Fourth Proportional to 110,640.70, 165,961.05 and 36,768.70

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Solution

The fourth proportional to 110,640.70, 165,961.05 and 36,768.70 is: 55,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,640.70 : 165,961.05 = 36,768.70 : x
  2. Step 2: Convert to fraction form
    110,640.70/165,961.05 = 36,768.70/x
  3. Step 3: Cross multiply
    110,640.70x = 165,961.05 × 36,768.70
  4. Step 4: Simplify right side
    110,640.70x = 6,102,172,059.14
  5. Step 5: Solve for x
    x = 6,102,172,059.14/110,640.70
  6. Step 6: Final answer
    x = 55,153.05

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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.