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Finding the Fourth Proportional to 221,558.64, 332,266.88 and 95,164.64

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Solution

The fourth proportional to 221,558.64, 332,266.88 and 95,164.64 is: 142,716.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,558.64 : 332,266.88 = 95,164.64 : x
  2. Step 2: Convert to fraction form
    221,558.64/332,266.88 = 95,164.64/x
  3. Step 3: Cross multiply
    221,558.64x = 332,266.88 × 95,164.64
  4. Step 4: Simplify right side
    221,558.64x = 31,620,058,019.12
  5. Step 5: Solve for x
    x = 31,620,058,019.12/221,558.64
  6. Step 6: Final answer
    x = 142,716.43

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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.