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Finding the Fourth Proportional to 121,321,704, 181,982,556 and 40,542,672

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Solution

The fourth proportional to 121,321,704, 181,982,556 and 40,542,672 is: 60,814,008

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,704 : 181,982,556 = 40,542,672 : x
  2. Step 2: Convert to fraction form
    121,321,704/181,982,556 = 40,542,672/x
  3. Step 3: Cross multiply
    121,321,704x = 181,982,556 × 40,542,672
  4. Step 4: Simplify right side
    121,321,704x = 7,378,059,077,629,632
  5. Step 5: Solve for x
    x = 7,378,059,077,629,632/121,321,704
  6. Step 6: Final answer
    x = 60,814,008

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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.