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Finding the Fourth Proportional to 119,520.57, 164,947.91 and 68,537.97

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Solution

The fourth proportional to 119,520.57, 164,947.91 and 68,537.97 is: 94,587.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,520.57 : 164,947.91 = 68,537.97 : x
  2. Step 2: Convert to fraction form
    119,520.57/164,947.91 = 68,537.97/x
  3. Step 3: Cross multiply
    119,520.57x = 164,947.91 × 68,537.97
  4. Step 4: Simplify right side
    119,520.57x = 11,305,194,907.14
  5. Step 5: Solve for x
    x = 11,305,194,907.14/119,520.57
  6. Step 6: Final answer
    x = 94,587.86

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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.