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Finding the Fourth Proportional to 221,432.03, 332,200.78 and 71,672.35

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Solution

The fourth proportional to 221,432.03, 332,200.78 and 71,672.35 is: 107,525.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.03 : 332,200.78 = 71,672.35 : x
  2. Step 2: Convert to fraction form
    221,432.03/332,200.78 = 71,672.35/x
  3. Step 3: Cross multiply
    221,432.03x = 332,200.78 × 71,672.35
  4. Step 4: Simplify right side
    221,432.03x = 23,809,609,564.75
  5. Step 5: Solve for x
    x = 23,809,609,564.75/221,432.03
  6. Step 6: Final answer
    x = 107,525.59

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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.