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Finding the Fourth Proportional to 386,825.44, 579,966 and 149,968.48

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Solution

The fourth proportional to 386,825.44, 579,966 and 149,968.48 is: 224,847.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,825.44 : 579,966 = 149,968.48 : x
  2. Step 2: Convert to fraction form
    386,825.44/579,966 = 149,968.48/x
  3. Step 3: Cross multiply
    386,825.44x = 579,966 × 149,968.48
  4. Step 4: Simplify right side
    386,825.44x = 86,976,619,471.68
  5. Step 5: Solve for x
    x = 86,976,619,471.68/386,825.44
  6. Step 6: Final answer
    x = 224,847.21

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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.