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Finding the Fourth Proportional to 167,081.76, 230,568.72 and 90,596.64

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Solution

The fourth proportional to 167,081.76, 230,568.72 and 90,596.64 is: 125,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,081.76 : 230,568.72 = 90,596.64 : x
  2. Step 2: Convert to fraction form
    167,081.76/230,568.72 = 90,596.64/x
  3. Step 3: Cross multiply
    167,081.76x = 230,568.72 × 90,596.64
  4. Step 4: Simplify right side
    167,081.76x = 20,888,751,321.10
  5. Step 5: Solve for x
    x = 20,888,751,321.10/167,081.76
  6. Step 6: Final answer
    x = 125,021.14

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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.