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Finding the Fourth Proportional to 243,163.96, 335,744.04 and 157,173.82

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Solution

The fourth proportional to 243,163.96, 335,744.04 and 157,173.82 is: 217,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,163.96 : 335,744.04 = 157,173.82 : x
  2. Step 2: Convert to fraction form
    243,163.96/335,744.04 = 157,173.82/x
  3. Step 3: Cross multiply
    243,163.96x = 335,744.04 × 157,173.82
  4. Step 4: Simplify right side
    243,163.96x = 52,770,173,309.03
  5. Step 5: Solve for x
    x = 52,770,173,309.03/243,163.96
  6. Step 6: Final answer
    x = 217,014.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.