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Finding the Fourth Proportional to 325,928.71, 488,893.47 and 89,273.44

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Solution

The fourth proportional to 325,928.71, 488,893.47 and 89,273.44 is: 133,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,928.71 : 488,893.47 = 89,273.44 : x
  2. Step 2: Convert to fraction form
    325,928.71/488,893.47 = 89,273.44/x
  3. Step 3: Cross multiply
    325,928.71x = 488,893.47 × 89,273.44
  4. Step 4: Simplify right side
    325,928.71x = 43,645,201,860.44
  5. Step 5: Solve for x
    x = 43,645,201,860.44/325,928.71
  6. Step 6: Final answer
    x = 133,910.27

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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.