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Finding the Fourth Proportional to 167,199.72, 230,734.98 and 91,749.48

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Solution

The fourth proportional to 167,199.72, 230,734.98 and 91,749.48 is: 126,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,199.72 : 230,734.98 = 91,749.48 : x
  2. Step 2: Convert to fraction form
    167,199.72/230,734.98 = 91,749.48/x
  3. Step 3: Cross multiply
    167,199.72x = 230,734.98 × 91,749.48
  4. Step 4: Simplify right side
    167,199.72x = 21,169,814,432.81
  5. Step 5: Solve for x
    x = 21,169,814,432.81/167,199.72
  6. Step 6: Final answer
    x = 126,613.93

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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.