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Finding the Fourth Proportional to 303,376.56, 418,660.91 and 167,414.50

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Solution

The fourth proportional to 303,376.56, 418,660.91 and 167,414.50 is: 231,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,376.56 : 418,660.91 = 167,414.50 : x
  2. Step 2: Convert to fraction form
    303,376.56/418,660.91 = 167,414.50/x
  3. Step 3: Cross multiply
    303,376.56x = 418,660.91 × 167,414.50
  4. Step 4: Simplify right side
    303,376.56x = 70,089,906,917.20
  5. Step 5: Solve for x
    x = 70,089,906,917.20/303,376.56
  6. Step 6: Final answer
    x = 231,032.70

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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.