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Finding the Fourth Proportional to 218,048.60, 327,072.90 and 113,072.60

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Solution

The fourth proportional to 218,048.60, 327,072.90 and 113,072.60 is: 169,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,048.60 : 327,072.90 = 113,072.60 : x
  2. Step 2: Convert to fraction form
    218,048.60/327,072.90 = 113,072.60/x
  3. Step 3: Cross multiply
    218,048.60x = 327,072.90 × 113,072.60
  4. Step 4: Simplify right side
    218,048.60x = 36,982,983,192.54
  5. Step 5: Solve for x
    x = 36,982,983,192.54/218,048.60
  6. Step 6: Final answer
    x = 169,608.90

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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.