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Finding the Fourth Proportional to 161,661.44, 223,104 and 98,001.92

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Solution

The fourth proportional to 161,661.44, 223,104 and 98,001.92 is: 135,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,661.44 : 223,104 = 98,001.92 : x
  2. Step 2: Convert to fraction form
    161,661.44/223,104 = 98,001.92/x
  3. Step 3: Cross multiply
    161,661.44x = 223,104 × 98,001.92
  4. Step 4: Simplify right side
    161,661.44x = 21,864,620,359.68
  5. Step 5: Solve for x
    x = 21,864,620,359.68/161,661.44
  6. Step 6: Final answer
    x = 135,249.45

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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.