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Finding the Fourth Proportional to 217,610.56, 326,346.72 and 69,832

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Solution

The fourth proportional to 217,610.56, 326,346.72 and 69,832 is: 104,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,610.56 : 326,346.72 = 69,832 : x
  2. Step 2: Convert to fraction form
    217,610.56/326,346.72 = 69,832/x
  3. Step 3: Cross multiply
    217,610.56x = 326,346.72 × 69,832
  4. Step 4: Simplify right side
    217,610.56x = 22,789,444,151.04
  5. Step 5: Solve for x
    x = 22,789,444,151.04/217,610.56
  6. Step 6: Final answer
    x = 104,725.82

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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.