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Finding the Fourth Proportional to 167,797.74, 231,565.53 and 91,317.54

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Solution

The fourth proportional to 167,797.74, 231,565.53 and 91,317.54 is: 126,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,797.74 : 231,565.53 = 91,317.54 : x
  2. Step 2: Convert to fraction form
    167,797.74/231,565.53 = 91,317.54/x
  3. Step 3: Cross multiply
    167,797.74x = 231,565.53 × 91,317.54
  4. Step 4: Simplify right side
    167,797.74x = 21,145,994,548.40
  5. Step 5: Solve for x
    x = 21,145,994,548.40/167,797.74
  6. Step 6: Final answer
    x = 126,020.74

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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.