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Finding the Fourth Proportional to 212,992.56, 319,538.06 and 63,229.54

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Solution

The fourth proportional to 212,992.56, 319,538.06 and 63,229.54 is: 94,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,992.56 : 319,538.06 = 63,229.54 : x
  2. Step 2: Convert to fraction form
    212,992.56/319,538.06 = 63,229.54/x
  3. Step 3: Cross multiply
    212,992.56x = 319,538.06 × 63,229.54
  4. Step 4: Simplify right side
    212,992.56x = 20,204,244,546.29
  5. Step 5: Solve for x
    x = 20,204,244,546.29/212,992.56
  6. Step 6: Final answer
    x = 94,858.92

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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.