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Finding the Fourth Proportional to 267,979.32, 401,978.03 and 134,786.97

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Solution

The fourth proportional to 267,979.32, 401,978.03 and 134,786.97 is: 202,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,979.32 : 401,978.03 = 134,786.97 : x
  2. Step 2: Convert to fraction form
    267,979.32/401,978.03 = 134,786.97/x
  3. Step 3: Cross multiply
    267,979.32x = 401,978.03 × 134,786.97
  4. Step 4: Simplify right side
    267,979.32x = 54,181,399,996.33
  5. Step 5: Solve for x
    x = 54,181,399,996.33/267,979.32
  6. Step 6: Final answer
    x = 202,185.00

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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.