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Finding the Fourth Proportional to 325,568.94, 488,252.97 and 115,158.48

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Solution

The fourth proportional to 325,568.94, 488,252.97 and 115,158.48 is: 172,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,568.94 : 488,252.97 = 115,158.48 : x
  2. Step 2: Convert to fraction form
    325,568.94/488,252.97 = 115,158.48/x
  3. Step 3: Cross multiply
    325,568.94x = 488,252.97 × 115,158.48
  4. Step 4: Simplify right side
    325,568.94x = 56,226,469,880.69
  5. Step 5: Solve for x
    x = 56,226,469,880.69/325,568.94
  6. Step 6: Final answer
    x = 172,702.19

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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.