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Finding the Fourth Proportional to 414,469.18, 621,703.73 and 114,949.76

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Solution

The fourth proportional to 414,469.18, 621,703.73 and 114,949.76 is: 172,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,469.18 : 621,703.73 = 114,949.76 : x
  2. Step 2: Convert to fraction form
    414,469.18/621,703.73 = 114,949.76/x
  3. Step 3: Cross multiply
    414,469.18x = 621,703.73 × 114,949.76
  4. Step 4: Simplify right side
    414,469.18x = 71,464,694,554.60
  5. Step 5: Solve for x
    x = 71,464,694,554.60/414,469.18
  6. Step 6: Final answer
    x = 172,424.63

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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.