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Finding the Fourth Proportional to 303,687.08, 419,091.30 and 167,724.40

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Solution

The fourth proportional to 303,687.08, 419,091.30 and 167,724.40 is: 231,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,687.08 : 419,091.30 = 167,724.40 : x
  2. Step 2: Convert to fraction form
    303,687.08/419,091.30 = 167,724.40/x
  3. Step 3: Cross multiply
    303,687.08x = 419,091.30 × 167,724.40
  4. Step 4: Simplify right side
    303,687.08x = 70,291,836,837.72
  5. Step 5: Solve for x
    x = 70,291,836,837.72/303,687.08
  6. Step 6: Final answer
    x = 231,461.40

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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.