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Finding the Fourth Proportional to 201,676,866.45, 302,515,299.68 and 197,197,890.45

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Solution

The fourth proportional to 201,676,866.45, 302,515,299.68 and 197,197,890.45 is: 295,796,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,676,866.45 : 302,515,299.68 = 197,197,890.45 : x
  2. Step 2: Convert to fraction form
    201,676,866.45/302,515,299.68 = 197,197,890.45/x
  3. Step 3: Cross multiply
    201,676,866.45x = 302,515,299.68 × 197,197,890.45
  4. Step 4: Simplify right side
    201,676,866.45x = 59,655,378,924,759,568
  5. Step 5: Solve for x
    x = 59,655,378,924,759,568/201,676,866.45
  6. Step 6: Final answer
    x = 295,796,835.68

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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.