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Finding the Fourth Proportional to 221,705.55, 332,607.47 and 63,921.69

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Solution

The fourth proportional to 221,705.55, 332,607.47 and 63,921.69 is: 95,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,705.55 : 332,607.47 = 63,921.69 : x
  2. Step 2: Convert to fraction form
    221,705.55/332,607.47 = 63,921.69/x
  3. Step 3: Cross multiply
    221,705.55x = 332,607.47 × 63,921.69
  4. Step 4: Simplify right side
    221,705.55x = 21,260,831,269.42
  5. Step 5: Solve for x
    x = 21,260,831,269.42/221,705.55
  6. Step 6: Final answer
    x = 95,896.70

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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.