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Finding the Fourth Proportional to 404,382.08, 606,612 and 123,849.92

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Solution

The fourth proportional to 404,382.08, 606,612 and 123,849.92 is: 185,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,382.08 : 606,612 = 123,849.92 : x
  2. Step 2: Convert to fraction form
    404,382.08/606,612 = 123,849.92/x
  3. Step 3: Cross multiply
    404,382.08x = 606,612 × 123,849.92
  4. Step 4: Simplify right side
    404,382.08x = 75,128,847,671.04
  5. Step 5: Solve for x
    x = 75,128,847,671.04/404,382.08
  6. Step 6: Final answer
    x = 185,786.79

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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.