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Finding the Fourth Proportional to 436,797.97, 655,200.60 and 121,279.48

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Solution

The fourth proportional to 436,797.97, 655,200.60 and 121,279.48 is: 181,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,797.97 : 655,200.60 = 121,279.48 : x
  2. Step 2: Convert to fraction form
    436,797.97/655,200.60 = 121,279.48/x
  3. Step 3: Cross multiply
    436,797.97x = 655,200.60 × 121,279.48
  4. Step 4: Simplify right side
    436,797.97x = 79,462,388,063.69
  5. Step 5: Solve for x
    x = 79,462,388,063.69/436,797.97
  6. Step 6: Final answer
    x = 181,920.23

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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.