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Finding the Fourth Proportional to 221,486.70, 332,218.44 and 63,708.96

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Solution

The fourth proportional to 221,486.70, 332,218.44 and 63,708.96 is: 95,560.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,486.70 : 332,218.44 = 63,708.96 : x
  2. Step 2: Convert to fraction form
    221,486.70/332,218.44 = 63,708.96/x
  3. Step 3: Cross multiply
    221,486.70x = 332,218.44 × 63,708.96
  4. Step 4: Simplify right side
    221,486.70x = 21,165,291,305.22
  5. Step 5: Solve for x
    x = 21,165,291,305.22/221,486.70
  6. Step 6: Final answer
    x = 95,560.10

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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.