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Finding the Fourth Proportional to 158,991.46, 238,486.22 and 40,662.60

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Solution

The fourth proportional to 158,991.46, 238,486.22 and 40,662.60 is: 60,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,991.46 : 238,486.22 = 40,662.60 : x
  2. Step 2: Convert to fraction form
    158,991.46/238,486.22 = 40,662.60/x
  3. Step 3: Cross multiply
    158,991.46x = 238,486.22 × 40,662.60
  4. Step 4: Simplify right side
    158,991.46x = 9,697,469,769.37
  5. Step 5: Solve for x
    x = 9,697,469,769.37/158,991.46
  6. Step 6: Final answer
    x = 60,993.65

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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.