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Finding the Fourth Proportional to 111,168, 166,769.28 and 37,313.28

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Solution

The fourth proportional to 111,168, 166,769.28 and 37,313.28 is: 55,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,168 : 166,769.28 = 37,313.28 : x
  2. Step 2: Convert to fraction form
    111,168/166,769.28 = 37,313.28/x
  3. Step 3: Cross multiply
    111,168x = 166,769.28 × 37,313.28
  4. Step 4: Simplify right side
    111,168x = 6,222,708,840.04
  5. Step 5: Solve for x
    x = 6,222,708,840.04/111,168
  6. Step 6: Final answer
    x = 55,975.72

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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.