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Finding the Fourth Proportional to 98,169.22, 135,469.92 and 59,992.66

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Solution

The fourth proportional to 98,169.22, 135,469.92 and 59,992.66 is: 82,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,169.22 : 135,469.92 = 59,992.66 : x
  2. Step 2: Convert to fraction form
    98,169.22/135,469.92 = 59,992.66/x
  3. Step 3: Cross multiply
    98,169.22x = 135,469.92 × 59,992.66
  4. Step 4: Simplify right side
    98,169.22x = 8,127,200,850.79
  5. Step 5: Solve for x
    x = 8,127,200,850.79/98,169.22
  6. Step 6: Final answer
    x = 82,787.67

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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.