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Finding the Fourth Proportional to 351,508.80, 485,076.15 and 190,362.54

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Solution

The fourth proportional to 351,508.80, 485,076.15 and 190,362.54 is: 262,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,508.80 : 485,076.15 = 190,362.54 : x
  2. Step 2: Convert to fraction form
    351,508.80/485,076.15 = 190,362.54/x
  3. Step 3: Cross multiply
    351,508.80x = 485,076.15 × 190,362.54
  4. Step 4: Simplify right side
    351,508.80x = 92,340,328,007.42
  5. Step 5: Solve for x
    x = 92,340,328,007.42/351,508.80
  6. Step 6: Final answer
    x = 262,697.06

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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.