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Finding the Fourth Proportional to 99,649,074.80, 149,473,612.20 and 73,821,042.20

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Solution

The fourth proportional to 99,649,074.80, 149,473,612.20 and 73,821,042.20 is: 110,731,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649,074.80 : 149,473,612.20 = 73,821,042.20 : x
  2. Step 2: Convert to fraction form
    99,649,074.80/149,473,612.20 = 73,821,042.20/x
  3. Step 3: Cross multiply
    99,649,074.80x = 149,473,612.20 × 73,821,042.20
  4. Step 4: Simplify right side
    99,649,074.80x = 11,034,297,834,002,634
  5. Step 5: Solve for x
    x = 11,034,297,834,002,634/99,649,074.80
  6. Step 6: Final answer
    x = 110,731,563.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.