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Finding the Fourth Proportional to 276,908.14, 415,362.16 and 66,546.08

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Solution

The fourth proportional to 276,908.14, 415,362.16 and 66,546.08 is: 99,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,908.14 : 415,362.16 = 66,546.08 : x
  2. Step 2: Convert to fraction form
    276,908.14/415,362.16 = 66,546.08/x
  3. Step 3: Cross multiply
    276,908.14x = 415,362.16 × 66,546.08
  4. Step 4: Simplify right side
    276,908.14x = 27,640,723,528.33
  5. Step 5: Solve for x
    x = 27,640,723,528.33/276,908.14
  6. Step 6: Final answer
    x = 99,819.11

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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.