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Finding the Fourth Proportional to 221,705.05, 332,606.72 and 63,921.19

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Solution

The fourth proportional to 221,705.05, 332,606.72 and 63,921.19 is: 95,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,705.05 : 332,606.72 = 63,921.19 : x
  2. Step 2: Convert to fraction form
    221,705.05/332,606.72 = 63,921.19/x
  3. Step 3: Cross multiply
    221,705.05x = 332,606.72 × 63,921.19
  4. Step 4: Simplify right side
    221,705.05x = 21,260,617,024.79
  5. Step 5: Solve for x
    x = 21,260,617,024.79/221,705.05
  6. Step 6: Final answer
    x = 95,895.95

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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.