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Finding the Fourth Proportional to 167,361.48, 230,962.86 and 91,911.60

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Solution

The fourth proportional to 167,361.48, 230,962.86 and 91,911.60 is: 126,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,361.48 : 230,962.86 = 91,911.60 : x
  2. Step 2: Convert to fraction form
    167,361.48/230,962.86 = 91,911.60/x
  3. Step 3: Cross multiply
    167,361.48x = 230,962.86 × 91,911.60
  4. Step 4: Simplify right side
    167,361.48x = 21,228,166,003.18
  5. Step 5: Solve for x
    x = 21,228,166,003.18/167,361.48
  6. Step 6: Final answer
    x = 126,840.21

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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.