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Finding the Fourth Proportional to 217,155.92, 325,774.84 and 82,260.38

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Solution

The fourth proportional to 217,155.92, 325,774.84 and 82,260.38 is: 123,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,155.92 : 325,774.84 = 82,260.38 : x
  2. Step 2: Convert to fraction form
    217,155.92/325,774.84 = 82,260.38/x
  3. Step 3: Cross multiply
    217,155.92x = 325,774.84 × 82,260.38
  4. Step 4: Simplify right side
    217,155.92x = 26,798,362,132.84
  5. Step 5: Solve for x
    x = 26,798,362,132.84/217,155.92
  6. Step 6: Final answer
    x = 123,406.09

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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.