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Finding the Fourth Proportional to 220,359.39, 330,512.43 and 60,448.34

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Solution

The fourth proportional to 220,359.39, 330,512.43 and 60,448.34 is: 90,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,359.39 : 330,512.43 = 60,448.34 : x
  2. Step 2: Convert to fraction form
    220,359.39/330,512.43 = 60,448.34/x
  3. Step 3: Cross multiply
    220,359.39x = 330,512.43 × 60,448.34
  4. Step 4: Simplify right side
    220,359.39x = 19,978,926,891.45
  5. Step 5: Solve for x
    x = 19,978,926,891.45/220,359.39
  6. Step 6: Final answer
    x = 90,665.20

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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.