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Finding the Fourth Proportional to 146,693.82, 220,115.76 and 69,843.79

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Solution

The fourth proportional to 146,693.82, 220,115.76 and 69,843.79 is: 104,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,693.82 : 220,115.76 = 69,843.79 : x
  2. Step 2: Convert to fraction form
    146,693.82/220,115.76 = 69,843.79/x
  3. Step 3: Cross multiply
    146,693.82x = 220,115.76 × 69,843.79
  4. Step 4: Simplify right side
    146,693.82x = 15,373,718,917.13
  5. Step 5: Solve for x
    x = 15,373,718,917.13/146,693.82
  6. Step 6: Final answer
    x = 104,801.41

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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.