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Finding the Fourth Proportional to 79,713,163.80, 119,494,512.90 and 43,267,829.40

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Solution

The fourth proportional to 79,713,163.80, 119,494,512.90 and 43,267,829.40 is: 64,860,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,163.80 : 119,494,512.90 = 43,267,829.40 : x
  2. Step 2: Convert to fraction form
    79,713,163.80/119,494,512.90 = 43,267,829.40/x
  3. Step 3: Cross multiply
    79,713,163.80x = 119,494,512.90 × 43,267,829.40
  4. Step 4: Simplify right side
    79,713,163.80x = 5,170,268,198,393,299
  5. Step 5: Solve for x
    x = 5,170,268,198,393,299/79,713,163.80
  6. Step 6: Final answer
    x = 64,860,908.19

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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.