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Finding the Fourth Proportional to 276,362.82, 381,323.43 and 161,619.17

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Solution

The fourth proportional to 276,362.82, 381,323.43 and 161,619.17 is: 223,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,362.82 : 381,323.43 = 161,619.17 : x
  2. Step 2: Convert to fraction form
    276,362.82/381,323.43 = 161,619.17/x
  3. Step 3: Cross multiply
    276,362.82x = 381,323.43 × 161,619.17
  4. Step 4: Simplify right side
    276,362.82x = 61,629,174,351.54
  5. Step 5: Solve for x
    x = 61,629,174,351.54/276,362.82
  6. Step 6: Final answer
    x = 223,000.96

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1.5x scale

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.