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Finding the Fourth Proportional to 352,395.91, 486,309.99 and 191,252.35

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Solution

The fourth proportional to 352,395.91, 486,309.99 and 191,252.35 is: 263,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,395.91 : 486,309.99 = 191,252.35 : x
  2. Step 2: Convert to fraction form
    352,395.91/486,309.99 = 191,252.35/x
  3. Step 3: Cross multiply
    352,395.91x = 486,309.99 × 191,252.35
  4. Step 4: Simplify right side
    352,395.91x = 93,007,928,415.98
  5. Step 5: Solve for x
    x = 93,007,928,415.98/352,395.91
  6. Step 6: Final answer
    x = 263,930.22

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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.