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Finding the Fourth Proportional to 244,638.20, 366,957.30 and 220,143.80

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Solution

The fourth proportional to 244,638.20, 366,957.30 and 220,143.80 is: 330,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,638.20 : 366,957.30 = 220,143.80 : x
  2. Step 2: Convert to fraction form
    244,638.20/366,957.30 = 220,143.80/x
  3. Step 3: Cross multiply
    244,638.20x = 366,957.30 × 220,143.80
  4. Step 4: Simplify right side
    244,638.20x = 80,783,374,459.74
  5. Step 5: Solve for x
    x = 80,783,374,459.74/244,638.20
  6. Step 6: Final answer
    x = 330,215.70

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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.