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Finding the Fourth Proportional to 351,508.01, 485,078.46 and 190,359.32

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Solution

The fourth proportional to 351,508.01, 485,078.46 and 190,359.32 is: 262,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,508.01 : 485,078.46 = 190,359.32 : x
  2. Step 2: Convert to fraction form
    351,508.01/485,078.46 = 190,359.32/x
  3. Step 3: Cross multiply
    351,508.01x = 485,078.46 × 190,359.32
  4. Step 4: Simplify right side
    351,508.01x = 92,339,203,366.85
  5. Step 5: Solve for x
    x = 92,339,203,366.85/351,508.01
  6. Step 6: Final answer
    x = 262,694.45

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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.