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Finding the Fourth Proportional to 168,181, 232,091.60 and 91,699.48

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Solution

The fourth proportional to 168,181, 232,091.60 and 91,699.48 is: 126,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,181 : 232,091.60 = 91,699.48 : x
  2. Step 2: Convert to fraction form
    168,181/232,091.60 = 91,699.48/x
  3. Step 3: Cross multiply
    168,181x = 232,091.60 × 91,699.48
  4. Step 4: Simplify right side
    168,181x = 21,282,679,032.37
  5. Step 5: Solve for x
    x = 21,282,679,032.37/168,181
  6. Step 6: Final answer
    x = 126,546.27

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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.