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Finding the Fourth Proportional to 40,797,752.60, 61,196,628.90 and 36,687,942.20

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Solution

The fourth proportional to 40,797,752.60, 61,196,628.90 and 36,687,942.20 is: 55,031,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,797,752.60 : 61,196,628.90 = 36,687,942.20 : x
  2. Step 2: Convert to fraction form
    40,797,752.60/61,196,628.90 = 36,687,942.20/x
  3. Step 3: Cross multiply
    40,797,752.60x = 61,196,628.90 × 36,687,942.20
  4. Step 4: Simplify right side
    40,797,752.60x = 2,245,178,383,918,049.75
  5. Step 5: Solve for x
    x = 2,245,178,383,918,049.75/40,797,752.60
  6. Step 6: Final answer
    x = 55,031,913.30

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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.