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Finding the Fourth Proportional to 159,463.56, 220,059.72 and 87,843.54

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Solution

The fourth proportional to 159,463.56, 220,059.72 and 87,843.54 is: 121,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,463.56 : 220,059.72 = 87,843.54 : x
  2. Step 2: Convert to fraction form
    159,463.56/220,059.72 = 87,843.54/x
  3. Step 3: Cross multiply
    159,463.56x = 220,059.72 × 87,843.54
  4. Step 4: Simplify right side
    159,463.56x = 19,330,824,816.21
  5. Step 5: Solve for x
    x = 19,330,824,816.21/159,463.56
  6. Step 6: Final answer
    x = 121,224.09

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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.