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Finding the Fourth Proportional to 351,873.27, 485,586.15 and 190,728.96

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Solution

The fourth proportional to 351,873.27, 485,586.15 and 190,728.96 is: 263,206.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,873.27 : 485,586.15 = 190,728.96 : x
  2. Step 2: Convert to fraction form
    351,873.27/485,586.15 = 190,728.96/x
  3. Step 3: Cross multiply
    351,873.27x = 485,586.15 × 190,728.96
  4. Step 4: Simplify right side
    351,873.27x = 92,615,337,998.33
  5. Step 5: Solve for x
    x = 92,615,337,998.33/351,873.27
  6. Step 6: Final answer
    x = 263,206.52

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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.