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Finding the Fourth Proportional to 91,958.96, 126,792.04 and 71,546.96

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Solution

The fourth proportional to 91,958.96, 126,792.04 and 71,546.96 is: 98,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,958.96 : 126,792.04 = 71,546.96 : x
  2. Step 2: Convert to fraction form
    91,958.96/126,792.04 = 71,546.96/x
  3. Step 3: Cross multiply
    91,958.96x = 126,792.04 × 71,546.96
  4. Step 4: Simplify right side
    91,958.96x = 9,071,585,014.20
  5. Step 5: Solve for x
    x = 9,071,585,014.20/91,958.96
  6. Step 6: Final answer
    x = 98,648.19

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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.