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Finding the Fourth Proportional to 325,287.44, 487,650.36 and 125,747.60

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Solution

The fourth proportional to 325,287.44, 487,650.36 and 125,747.60 is: 188,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,287.44 : 487,650.36 = 125,747.60 : x
  2. Step 2: Convert to fraction form
    325,287.44/487,650.36 = 125,747.60/x
  3. Step 3: Cross multiply
    325,287.44x = 487,650.36 × 125,747.60
  4. Step 4: Simplify right side
    325,287.44x = 61,320,862,409.14
  5. Step 5: Solve for x
    x = 61,320,862,409.14/325,287.44
  6. Step 6: Final answer
    x = 188,512.85

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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.