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Finding the Fourth Proportional to 354,257.05, 531,489.11 and 114,365.33

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Solution

The fourth proportional to 354,257.05, 531,489.11 and 114,365.33 is: 171,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,257.05 : 531,489.11 = 114,365.33 : x
  2. Step 2: Convert to fraction form
    354,257.05/531,489.11 = 114,365.33/x
  3. Step 3: Cross multiply
    354,257.05x = 531,489.11 × 114,365.33
  4. Step 4: Simplify right side
    354,257.05x = 60,783,927,456.56
  5. Step 5: Solve for x
    x = 60,783,927,456.56/354,257.05
  6. Step 6: Final answer
    x = 171,581.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.