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Finding the Fourth Proportional to 168,185.31, 232,092.75 and 91,705

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Solution

The fourth proportional to 168,185.31, 232,092.75 and 91,705 is: 126,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,185.31 : 232,092.75 = 91,705 : x
  2. Step 2: Convert to fraction form
    168,185.31/232,092.75 = 91,705/x
  3. Step 3: Cross multiply
    168,185.31x = 232,092.75 × 91,705
  4. Step 4: Simplify right side
    168,185.31x = 21,284,065,638.75
  5. Step 5: Solve for x
    x = 21,284,065,638.75/168,185.31
  6. Step 6: Final answer
    x = 126,551.28

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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.