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Finding the Fourth Proportional to 412,820.56, 619,231.38 and 113,305.24

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Solution

The fourth proportional to 412,820.56, 619,231.38 and 113,305.24 is: 169,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,820.56 : 619,231.38 = 113,305.24 : x
  2. Step 2: Convert to fraction form
    412,820.56/619,231.38 = 113,305.24/x
  3. Step 3: Cross multiply
    412,820.56x = 619,231.38 × 113,305.24
  4. Step 4: Simplify right side
    412,820.56x = 70,162,160,126.43
  5. Step 5: Solve for x
    x = 70,162,160,126.43/412,820.56
  6. Step 6: Final answer
    x = 169,958.01

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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.