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Finding the Fourth Proportional to 221,693.26, 332,589.09 and 63,909.40

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Solution

The fourth proportional to 221,693.26, 332,589.09 and 63,909.40 is: 95,878.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,693.26 : 332,589.09 = 63,909.40 : x
  2. Step 2: Convert to fraction form
    221,693.26/332,589.09 = 63,909.40/x
  3. Step 3: Cross multiply
    221,693.26x = 332,589.09 × 63,909.40
  4. Step 4: Simplify right side
    221,693.26x = 21,255,569,188.45
  5. Step 5: Solve for x
    x = 21,255,569,188.45/221,693.26
  6. Step 6: Final answer
    x = 95,878.28

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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.