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Finding the Fourth Proportional to 220,992.58, 331,510.24 and 87,842.96

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Solution

The fourth proportional to 220,992.58, 331,510.24 and 87,842.96 is: 131,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,992.58 : 331,510.24 = 87,842.96 : x
  2. Step 2: Convert to fraction form
    220,992.58/331,510.24 = 87,842.96/x
  3. Step 3: Cross multiply
    220,992.58x = 331,510.24 × 87,842.96
  4. Step 4: Simplify right side
    220,992.58x = 29,120,840,751.91
  5. Step 5: Solve for x
    x = 29,120,840,751.91/220,992.58
  6. Step 6: Final answer
    x = 131,772.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.