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Finding the Fourth Proportional to 221,705.26, 332,607.10 and 63,921.40

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Solution

The fourth proportional to 221,705.26, 332,607.10 and 63,921.40 is: 95,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,705.26 : 332,607.10 = 63,921.40 : x
  2. Step 2: Convert to fraction form
    221,705.26/332,607.10 = 63,921.40/x
  3. Step 3: Cross multiply
    221,705.26x = 332,607.10 × 63,921.40
  4. Step 4: Simplify right side
    221,705.26x = 21,260,711,481.94
  5. Step 5: Solve for x
    x = 21,260,711,481.94/221,705.26
  6. Step 6: Final answer
    x = 95,896.29

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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.