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Finding the Fourth Proportional to 412,793.56, 619,187.64 and 113,250.70

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Solution

The fourth proportional to 412,793.56, 619,187.64 and 113,250.70 is: 169,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,793.56 : 619,187.64 = 113,250.70 : x
  2. Step 2: Convert to fraction form
    412,793.56/619,187.64 = 113,250.70/x
  3. Step 3: Cross multiply
    412,793.56x = 619,187.64 × 113,250.70
  4. Step 4: Simplify right side
    412,793.56x = 70,123,433,661.35
  5. Step 5: Solve for x
    x = 70,123,433,661.35/412,793.56
  6. Step 6: Final answer
    x = 169,875.31

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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.