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Finding the Fourth Proportional to 303,380.50, 418,664.76 and 167,414.41

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Solution

The fourth proportional to 303,380.50, 418,664.76 and 167,414.41 is: 231,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,380.50 : 418,664.76 = 167,414.41 : x
  2. Step 2: Convert to fraction form
    303,380.50/418,664.76 = 167,414.41/x
  3. Step 3: Cross multiply
    303,380.50x = 418,664.76 × 167,414.41
  4. Step 4: Simplify right side
    303,380.50x = 70,090,513,783.19
  5. Step 5: Solve for x
    x = 70,090,513,783.19/303,380.50
  6. Step 6: Final answer
    x = 231,031.70

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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.