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Finding the Fourth Proportional to 178,947.81, 268,224.87 and 73,709.37

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Solution

The fourth proportional to 178,947.81, 268,224.87 and 73,709.37 is: 110,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,947.81 : 268,224.87 = 73,709.37 : x
  2. Step 2: Convert to fraction form
    178,947.81/268,224.87 = 73,709.37/x
  3. Step 3: Cross multiply
    178,947.81x = 268,224.87 × 73,709.37
  4. Step 4: Simplify right side
    178,947.81x = 19,770,686,186.03
  5. Step 5: Solve for x
    x = 19,770,686,186.03/178,947.81
  6. Step 6: Final answer
    x = 110,482.97

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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.