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Finding the Fourth Proportional to 414,767.39, 622,150.72 and 115,247.81

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Solution

The fourth proportional to 414,767.39, 622,150.72 and 115,247.81 is: 172,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,767.39 : 622,150.72 = 115,247.81 : x
  2. Step 2: Convert to fraction form
    414,767.39/622,150.72 = 115,247.81/x
  3. Step 3: Cross multiply
    414,767.39x = 622,150.72 × 115,247.81
  4. Step 4: Simplify right side
    414,767.39x = 71,701,509,885.45
  5. Step 5: Solve for x
    x = 71,701,509,885.45/414,767.39
  6. Step 6: Final answer
    x = 172,871.62

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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.