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Finding the Fourth Proportional to 351,991.92, 485,752.32 and 190,846.56

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Solution

The fourth proportional to 351,991.92, 485,752.32 and 190,846.56 is: 263,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,991.92 : 485,752.32 = 190,846.56 : x
  2. Step 2: Convert to fraction form
    351,991.92/485,752.32 = 190,846.56/x
  3. Step 3: Cross multiply
    351,991.92x = 485,752.32 × 190,846.56
  4. Step 4: Simplify right side
    351,991.92x = 92,704,159,284.02
  5. Step 5: Solve for x
    x = 92,704,159,284.02/351,991.92
  6. Step 6: Final answer
    x = 263,370.13

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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.