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Finding the Fourth Proportional to 352,161.86, 485,980.52 and 191,016.50

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Solution

The fourth proportional to 352,161.86, 485,980.52 and 191,016.50 is: 263,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,161.86 : 485,980.52 = 191,016.50 : x
  2. Step 2: Convert to fraction form
    352,161.86/485,980.52 = 191,016.50/x
  3. Step 3: Cross multiply
    352,161.86x = 485,980.52 × 191,016.50
  4. Step 4: Simplify right side
    352,161.86x = 92,830,297,998.58
  5. Step 5: Solve for x
    x = 92,830,297,998.58/352,161.86
  6. Step 6: Final answer
    x = 263,601.23

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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.