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Finding the Fourth Proportional to 99,651,187.80, 149,476,781.70 and 73,823,155.20

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Solution

The fourth proportional to 99,651,187.80, 149,476,781.70 and 73,823,155.20 is: 110,734,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651,187.80 : 149,476,781.70 = 73,823,155.20 : x
  2. Step 2: Convert to fraction form
    99,651,187.80/149,476,781.70 = 73,823,155.20/x
  3. Step 3: Cross multiply
    99,651,187.80x = 149,476,781.70 × 73,823,155.20
  4. Step 4: Simplify right side
    99,651,187.80x = 11,034,847,654,235,620
  5. Step 5: Solve for x
    x = 11,034,847,654,235,620/99,651,187.80
  6. Step 6: Final answer
    x = 110,734,732.80

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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.