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Finding the Fourth Proportional to 221,188.44, 331,782.92 and 54,976.44

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Solution

The fourth proportional to 221,188.44, 331,782.92 and 54,976.44 is: 82,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,188.44 : 331,782.92 = 54,976.44 : x
  2. Step 2: Convert to fraction form
    221,188.44/331,782.92 = 54,976.44/x
  3. Step 3: Cross multiply
    221,188.44x = 331,782.92 × 54,976.44
  4. Step 4: Simplify right side
    221,188.44x = 18,240,243,794.40
  5. Step 5: Solve for x
    x = 18,240,243,794.40/221,188.44
  6. Step 6: Final answer
    x = 82,464.72

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1.5x scale

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.