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Finding the Fourth Proportional to 188,910.67, 260,696.72 and 104,027.73

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Solution

The fourth proportional to 188,910.67, 260,696.72 and 104,027.73 is: 143,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,910.67 : 260,696.72 = 104,027.73 : x
  2. Step 2: Convert to fraction form
    188,910.67/260,696.72 = 104,027.73/x
  3. Step 3: Cross multiply
    188,910.67x = 260,696.72 × 104,027.73
  4. Step 4: Simplify right side
    188,910.67x = 27,119,688,309.17
  5. Step 5: Solve for x
    x = 27,119,688,309.17/188,910.67
  6. Step 6: Final answer
    x = 143,558.27

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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.