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Finding the Fourth Proportional to 71,690,433.60, 107,535,650.40 and 23,821,377.60

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Solution

The fourth proportional to 71,690,433.60, 107,535,650.40 and 23,821,377.60 is: 35,732,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,690,433.60 : 107,535,650.40 = 23,821,377.60 : x
  2. Step 2: Convert to fraction form
    71,690,433.60/107,535,650.40 = 23,821,377.60/x
  3. Step 3: Cross multiply
    71,690,433.60x = 107,535,650.40 × 23,821,377.60
  4. Step 4: Simplify right side
    71,690,433.60x = 2,561,647,333,639,991.50
  5. Step 5: Solve for x
    x = 2,561,647,333,639,991.50/71,690,433.60
  6. Step 6: Final answer
    x = 35,732,066.40

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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.