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Finding the Fourth Proportional to 220,672.80, 330,911.04 and 62,865.60

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Solution

The fourth proportional to 220,672.80, 330,911.04 and 62,865.60 is: 94,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,672.80 : 330,911.04 = 62,865.60 : x
  2. Step 2: Convert to fraction form
    220,672.80/330,911.04 = 62,865.60/x
  3. Step 3: Cross multiply
    220,672.80x = 330,911.04 × 62,865.60
  4. Step 4: Simplify right side
    220,672.80x = 20,802,921,076.22
  5. Step 5: Solve for x
    x = 20,802,921,076.22/220,672.80
  6. Step 6: Final answer
    x = 94,270.44

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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.