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Finding the Fourth Proportional to 104,978,612.80, 157,467,919.20 and 33,175,028.80

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Solution

The fourth proportional to 104,978,612.80, 157,467,919.20 and 33,175,028.80 is: 49,762,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978,612.80 : 157,467,919.20 = 33,175,028.80 : x
  2. Step 2: Convert to fraction form
    104,978,612.80/157,467,919.20 = 33,175,028.80/x
  3. Step 3: Cross multiply
    104,978,612.80x = 157,467,919.20 × 33,175,028.80
  4. Step 4: Simplify right side
    104,978,612.80x = 5,224,002,754,536,073
  5. Step 5: Solve for x
    x = 5,224,002,754,536,073/104,978,612.80
  6. Step 6: Final answer
    x = 49,762,543.20

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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.