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Finding the Fourth Proportional to 197,991.96, 273,244.68 and 111,969.06

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Solution

The fourth proportional to 197,991.96, 273,244.68 and 111,969.06 is: 154,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,991.96 : 273,244.68 = 111,969.06 : x
  2. Step 2: Convert to fraction form
    197,991.96/273,244.68 = 111,969.06/x
  3. Step 3: Cross multiply
    197,991.96x = 273,244.68 × 111,969.06
  4. Step 4: Simplify right side
    197,991.96x = 30,594,949,969.60
  5. Step 5: Solve for x
    x = 30,594,949,969.60/197,991.96
  6. Step 6: Final answer
    x = 154,526.22

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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.