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Finding the Fourth Proportional to 404,063.40, 606,163.10 and 123,515.08

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Solution

The fourth proportional to 404,063.40, 606,163.10 and 123,515.08 is: 185,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,063.40 : 606,163.10 = 123,515.08 : x
  2. Step 2: Convert to fraction form
    404,063.40/606,163.10 = 123,515.08/x
  3. Step 3: Cross multiply
    404,063.40x = 606,163.10 × 123,515.08
  4. Step 4: Simplify right side
    404,063.40x = 74,870,283,789.55
  5. Step 5: Solve for x
    x = 74,870,283,789.55/404,063.40
  6. Step 6: Final answer
    x = 185,293.41

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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.