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Finding the Fourth Proportional to 404,102.49, 606,131.75 and 123,619.74

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Solution

The fourth proportional to 404,102.49, 606,131.75 and 123,619.74 is: 185,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,102.49 : 606,131.75 = 123,619.74 : x
  2. Step 2: Convert to fraction form
    404,102.49/606,131.75 = 123,619.74/x
  3. Step 3: Cross multiply
    404,102.49x = 606,131.75 × 123,619.74
  4. Step 4: Simplify right side
    404,102.49x = 74,929,848,722.65
  5. Step 5: Solve for x
    x = 74,929,848,722.65/404,102.49
  6. Step 6: Final answer
    x = 185,422.88

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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.