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Finding the Fourth Proportional to 436,793.97, 655,194.60 and 121,275.48

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Solution

The fourth proportional to 436,793.97, 655,194.60 and 121,275.48 is: 181,914.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,793.97 : 655,194.60 = 121,275.48 : x
  2. Step 2: Convert to fraction form
    436,793.97/655,194.60 = 121,275.48/x
  3. Step 3: Cross multiply
    436,793.97x = 655,194.60 × 121,275.48
  4. Step 4: Simplify right side
    436,793.97x = 79,459,039,608.41
  5. Step 5: Solve for x
    x = 79,459,039,608.41/436,793.97
  6. Step 6: Final answer
    x = 181,914.23

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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.