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Finding the Fourth Proportional to 352,071.97, 485,859.60 and 190,927

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Solution

The fourth proportional to 352,071.97, 485,859.60 and 190,927 is: 263,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,071.97 : 485,859.60 = 190,927 : x
  2. Step 2: Convert to fraction form
    352,071.97/485,859.60 = 190,927/x
  3. Step 3: Cross multiply
    352,071.97x = 485,859.60 × 190,927
  4. Step 4: Simplify right side
    352,071.97x = 92,763,715,849.20
  5. Step 5: Solve for x
    x = 92,763,715,849.20/352,071.97
  6. Step 6: Final answer
    x = 263,479.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.