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Finding the Fourth Proportional to 167,727.60, 231,459.84 and 91,243.44

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Solution

The fourth proportional to 167,727.60, 231,459.84 and 91,243.44 is: 125,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,727.60 : 231,459.84 = 91,243.44 : x
  2. Step 2: Convert to fraction form
    167,727.60/231,459.84 = 91,243.44/x
  3. Step 3: Cross multiply
    167,727.60x = 231,459.84 × 91,243.44
  4. Step 4: Simplify right side
    167,727.60x = 21,119,192,023.45
  5. Step 5: Solve for x
    x = 21,119,192,023.45/167,727.60
  6. Step 6: Final answer
    x = 125,913.64

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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.