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Finding the Fourth Proportional to 221,441.20, 332,107.80 and 63,653.20

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Solution

The fourth proportional to 221,441.20, 332,107.80 and 63,653.20 is: 95,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,441.20 : 332,107.80 = 63,653.20 : x
  2. Step 2: Convert to fraction form
    221,441.20/332,107.80 = 63,653.20/x
  3. Step 3: Cross multiply
    221,441.20x = 332,107.80 × 63,653.20
  4. Step 4: Simplify right side
    221,441.20x = 21,139,724,214.96
  5. Step 5: Solve for x
    x = 21,139,724,214.96/221,441.20
  6. Step 6: Final answer
    x = 95,464.28

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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.