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Finding the Fourth Proportional to 248,361.36, 372,542.16 and 82,149.36

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Solution

The fourth proportional to 248,361.36, 372,542.16 and 82,149.36 is: 123,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,361.36 : 372,542.16 = 82,149.36 : x
  2. Step 2: Convert to fraction form
    248,361.36/372,542.16 = 82,149.36/x
  3. Step 3: Cross multiply
    248,361.36x = 372,542.16 × 82,149.36
  4. Step 4: Simplify right side
    248,361.36x = 30,604,100,017.02
  5. Step 5: Solve for x
    x = 30,604,100,017.02/248,361.36
  6. Step 6: Final answer
    x = 123,224.08

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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.