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Finding the Fourth Proportional to 221,496.80, 332,245.20 and 146,701.40

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Solution

The fourth proportional to 221,496.80, 332,245.20 and 146,701.40 is: 220,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,496.80 : 332,245.20 = 146,701.40 : x
  2. Step 2: Convert to fraction form
    221,496.80/332,245.20 = 146,701.40/x
  3. Step 3: Cross multiply
    221,496.80x = 332,245.20 × 146,701.40
  4. Step 4: Simplify right side
    221,496.80x = 48,740,835,983.28
  5. Step 5: Solve for x
    x = 48,740,835,983.28/221,496.80
  6. Step 6: Final answer
    x = 220,052.10

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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.