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Finding the Fourth Proportional to 446,653.44, 670,019.85 and 126,809.96

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Solution

The fourth proportional to 446,653.44, 670,019.85 and 126,809.96 is: 190,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,653.44 : 670,019.85 = 126,809.96 : x
  2. Step 2: Convert to fraction form
    446,653.44/670,019.85 = 126,809.96/x
  3. Step 3: Cross multiply
    446,653.44x = 670,019.85 × 126,809.96
  4. Step 4: Simplify right side
    446,653.44x = 84,965,187,027.61
  5. Step 5: Solve for x
    x = 84,965,187,027.61/446,653.44
  6. Step 6: Final answer
    x = 190,226.20

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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.