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Finding the Fourth Proportional to 325,694.52, 488,542.86 and 115,338.60

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Solution

The fourth proportional to 325,694.52, 488,542.86 and 115,338.60 is: 173,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,694.52 : 488,542.86 = 115,338.60 : x
  2. Step 2: Convert to fraction form
    325,694.52/488,542.86 = 115,338.60/x
  3. Step 3: Cross multiply
    325,694.52x = 488,542.86 × 115,338.60
  4. Step 4: Simplify right side
    325,694.52x = 56,347,849,512.40
  5. Step 5: Solve for x
    x = 56,347,849,512.40/325,694.52
  6. Step 6: Final answer
    x = 173,008.28

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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.