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Finding the Fourth Proportional to 408,769.24, 613,246.14 and 124,485.24

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Solution

The fourth proportional to 408,769.24, 613,246.14 and 124,485.24 is: 186,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,769.24 : 613,246.14 = 124,485.24 : x
  2. Step 2: Convert to fraction form
    408,769.24/613,246.14 = 124,485.24/x
  3. Step 3: Cross multiply
    408,769.24x = 613,246.14 × 124,485.24
  4. Step 4: Simplify right side
    408,769.24x = 76,340,092,916.97
  5. Step 5: Solve for x
    x = 76,340,092,916.97/408,769.24
  6. Step 6: Final answer
    x = 186,755.96

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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.