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Finding the Fourth Proportional to 269,423,891.20, 404,135,836.80 and 183,330,449.20

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Solution

The fourth proportional to 269,423,891.20, 404,135,836.80 and 183,330,449.20 is: 274,995,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,423,891.20 : 404,135,836.80 = 183,330,449.20 : x
  2. Step 2: Convert to fraction form
    269,423,891.20/404,135,836.80 = 183,330,449.20/x
  3. Step 3: Cross multiply
    269,423,891.20x = 404,135,836.80 × 183,330,449.20
  4. Step 4: Simplify right side
    269,423,891.20x = 74,090,404,498,361,888
  5. Step 5: Solve for x
    x = 74,090,404,498,361,888/269,423,891.20
  6. Step 6: Final answer
    x = 274,995,673.80

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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.