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Finding the Fourth Proportional to 218,331.78, 327,577.77 and 92,003.82

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Solution

The fourth proportional to 218,331.78, 327,577.77 and 92,003.82 is: 138,039.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,331.78 : 327,577.77 = 92,003.82 : x
  2. Step 2: Convert to fraction form
    218,331.78/327,577.77 = 92,003.82/x
  3. Step 3: Cross multiply
    218,331.78x = 327,577.77 × 92,003.82
  4. Step 4: Simplify right side
    218,331.78x = 30,138,406,187.08
  5. Step 5: Solve for x
    x = 30,138,406,187.08/218,331.78
  6. Step 6: Final answer
    x = 138,039.48

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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.