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Finding the Fourth Proportional to 119,969.73, 180,063.66 and 63,856.78

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Solution

The fourth proportional to 119,969.73, 180,063.66 and 63,856.78 is: 95,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,969.73 : 180,063.66 = 63,856.78 : x
  2. Step 2: Convert to fraction form
    119,969.73/180,063.66 = 63,856.78/x
  3. Step 3: Cross multiply
    119,969.73x = 180,063.66 × 63,856.78
  4. Step 4: Simplify right side
    119,969.73x = 11,498,285,283.15
  5. Step 5: Solve for x
    x = 11,498,285,283.15/119,969.73
  6. Step 6: Final answer
    x = 95,843.22

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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.