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Finding the Fourth Proportional to 221,567.54, 332,280.23 and 71,771.72

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Solution

The fourth proportional to 221,567.54, 332,280.23 and 71,771.72 is: 107,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,567.54 : 332,280.23 = 71,771.72 : x
  2. Step 2: Convert to fraction form
    221,567.54/332,280.23 = 71,771.72/x
  3. Step 3: Cross multiply
    221,567.54x = 332,280.23 × 71,771.72
  4. Step 4: Simplify right side
    221,567.54x = 23,848,322,147.12
  5. Step 5: Solve for x
    x = 23,848,322,147.12/221,567.54
  6. Step 6: Final answer
    x = 107,634.55

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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.