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Finding the Fourth Proportional to 111,940.34, 167,804.96 and 55,727.28

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Solution

The fourth proportional to 111,940.34, 167,804.96 and 55,727.28 is: 83,538.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,940.34 : 167,804.96 = 55,727.28 : x
  2. Step 2: Convert to fraction form
    111,940.34/167,804.96 = 55,727.28/x
  3. Step 3: Cross multiply
    111,940.34x = 167,804.96 × 55,727.28
  4. Step 4: Simplify right side
    111,940.34x = 9,351,313,712.67
  5. Step 5: Solve for x
    x = 9,351,313,712.67/111,940.34
  6. Step 6: Final answer
    x = 83,538.38

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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.