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Finding the Fourth Proportional to 220,290.60, 330,436.16 and 60,367.88

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Solution

The fourth proportional to 220,290.60, 330,436.16 and 60,367.88 is: 90,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,290.60 : 330,436.16 = 60,367.88 : x
  2. Step 2: Convert to fraction form
    220,290.60/330,436.16 = 60,367.88/x
  3. Step 3: Cross multiply
    220,290.60x = 330,436.16 × 60,367.88
  4. Step 4: Simplify right side
    220,290.60x = 19,947,730,454.54
  5. Step 5: Solve for x
    x = 19,947,730,454.54/220,290.60
  6. Step 6: Final answer
    x = 90,551.89

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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.