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Finding the Fourth Proportional to 221,705.80, 332,607.84 and 63,921.96

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Solution

The fourth proportional to 221,705.80, 332,607.84 and 63,921.96 is: 95,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,705.80 : 332,607.84 = 63,921.96 : x
  2. Step 2: Convert to fraction form
    221,705.80/332,607.84 = 63,921.96/x
  3. Step 3: Cross multiply
    221,705.80x = 332,607.84 × 63,921.96
  4. Step 4: Simplify right side
    221,705.80x = 21,260,945,044.17
  5. Step 5: Solve for x
    x = 21,260,945,044.17/221,705.80
  6. Step 6: Final answer
    x = 95,897.11

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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.