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Finding the Fourth Proportional to 168,361.88, 232,340.72 and 91,881.56

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Solution

The fourth proportional to 168,361.88, 232,340.72 and 91,881.56 is: 126,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,361.88 : 232,340.72 = 91,881.56 : x
  2. Step 2: Convert to fraction form
    168,361.88/232,340.72 = 91,881.56/x
  3. Step 3: Cross multiply
    168,361.88x = 232,340.72 × 91,881.56
  4. Step 4: Simplify right side
    168,361.88x = 21,347,827,805.12
  5. Step 5: Solve for x
    x = 21,347,827,805.12/168,361.88
  6. Step 6: Final answer
    x = 126,797.28

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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.