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Finding the Fourth Proportional to 273,145.56, 409,713.44 and 104,620.20

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Solution

The fourth proportional to 273,145.56, 409,713.44 and 104,620.20 is: 156,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,145.56 : 409,713.44 = 104,620.20 : x
  2. Step 2: Convert to fraction form
    273,145.56/409,713.44 = 104,620.20/x
  3. Step 3: Cross multiply
    273,145.56x = 409,713.44 × 104,620.20
  4. Step 4: Simplify right side
    273,145.56x = 42,864,302,035.49
  5. Step 5: Solve for x
    x = 42,864,302,035.49/273,145.56
  6. Step 6: Final answer
    x = 156,928.42

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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.