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Finding the Fourth Proportional to 265,203.75, 397,914.18 and 115,366.71

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Solution

The fourth proportional to 265,203.75, 397,914.18 and 115,366.71 is: 173,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,203.75 : 397,914.18 = 115,366.71 : x
  2. Step 2: Convert to fraction form
    265,203.75/397,914.18 = 115,366.71/x
  3. Step 3: Cross multiply
    265,203.75x = 397,914.18 × 115,366.71
  4. Step 4: Simplify right side
    265,203.75x = 45,906,049,808.95
  5. Step 5: Solve for x
    x = 45,906,049,808.95/265,203.75
  6. Step 6: Final answer
    x = 173,097.29

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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.