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Finding the Fourth Proportional to 242,871.82, 335,162.46 and 135,441.97

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Solution

The fourth proportional to 242,871.82, 335,162.46 and 135,441.97 is: 186,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,871.82 : 335,162.46 = 135,441.97 : x
  2. Step 2: Convert to fraction form
    242,871.82/335,162.46 = 135,441.97/x
  3. Step 3: Cross multiply
    242,871.82x = 335,162.46 × 135,441.97
  4. Step 4: Simplify right side
    242,871.82x = 45,395,064,645.88
  5. Step 5: Solve for x
    x = 45,395,064,645.88/242,871.82
  6. Step 6: Final answer
    x = 186,909.56

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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.