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Finding the Fourth Proportional to 221,974.02, 332,992.62 and 72,166.14

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Solution

The fourth proportional to 221,974.02, 332,992.62 and 72,166.14 is: 108,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,974.02 : 332,992.62 = 72,166.14 : x
  2. Step 2: Convert to fraction form
    221,974.02/332,992.62 = 72,166.14/x
  3. Step 3: Cross multiply
    221,974.02x = 332,992.62 × 72,166.14
  4. Step 4: Simplify right side
    221,974.02x = 24,030,792,033.89
  5. Step 5: Solve for x
    x = 24,030,792,033.89/221,974.02
  6. Step 6: Final answer
    x = 108,259.48

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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.