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Finding the Fourth Proportional to 414,305.70, 621,471.90 and 114,789.18

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Solution

The fourth proportional to 414,305.70, 621,471.90 and 114,789.18 is: 172,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,305.70 : 621,471.90 = 114,789.18 : x
  2. Step 2: Convert to fraction form
    414,305.70/621,471.90 = 114,789.18/x
  3. Step 3: Cross multiply
    414,305.70x = 621,471.90 × 114,789.18
  4. Step 4: Simplify right side
    414,305.70x = 71,338,249,794.04
  5. Step 5: Solve for x
    x = 71,338,249,794.04/414,305.70
  6. Step 6: Final answer
    x = 172,187.47

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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.