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Finding the Fourth Proportional to 351,726.96, 485,383.63 and 190,581.88

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Solution

The fourth proportional to 351,726.96, 485,383.63 and 190,581.88 is: 263,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,726.96 : 485,383.63 = 190,581.88 : x
  2. Step 2: Convert to fraction form
    351,726.96/485,383.63 = 190,581.88/x
  3. Step 3: Cross multiply
    351,726.96x = 485,383.63 × 190,581.88
  4. Step 4: Simplify right side
    351,726.96x = 92,505,324,726.62
  5. Step 5: Solve for x
    x = 92,505,324,726.62/351,726.96
  6. Step 6: Final answer
    x = 263,003.22

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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.