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Finding the Fourth Proportional to 107,659,612.80, 161,489,419.20 and 50,263,984.80

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Solution

The fourth proportional to 107,659,612.80, 161,489,419.20 and 50,263,984.80 is: 75,395,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659,612.80 : 161,489,419.20 = 50,263,984.80 : x
  2. Step 2: Convert to fraction form
    107,659,612.80/161,489,419.20 = 50,263,984.80/x
  3. Step 3: Cross multiply
    107,659,612.80x = 161,489,419.20 × 50,263,984.80
  4. Step 4: Simplify right side
    107,659,612.80x = 8,117,101,712,029,627
  5. Step 5: Solve for x
    x = 8,117,101,712,029,627/107,659,612.80
  6. Step 6: Final answer
    x = 75,395,977.20

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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.