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Finding the Fourth Proportional to 116,558.67, 174,174.48 and 87,517.97

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Solution

The fourth proportional to 116,558.67, 174,174.48 and 87,517.97 is: 130,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,558.67 : 174,174.48 = 87,517.97 : x
  2. Step 2: Convert to fraction form
    116,558.67/174,174.48 = 87,517.97/x
  3. Step 3: Cross multiply
    116,558.67x = 174,174.48 × 87,517.97
  4. Step 4: Simplify right side
    116,558.67x = 15,243,396,451.54
  5. Step 5: Solve for x
    x = 15,243,396,451.54/116,558.67
  6. Step 6: Final answer
    x = 130,778.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.