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Finding the Fourth Proportional to 66,965,952.80, 100,449,002.10 and 26,576,436.80

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Solution

The fourth proportional to 66,965,952.80, 100,449,002.10 and 26,576,436.80 is: 39,864,684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965,952.80 : 100,449,002.10 = 26,576,436.80 : x
  2. Step 2: Convert to fraction form
    66,965,952.80/100,449,002.10 = 26,576,436.80/x
  3. Step 3: Cross multiply
    66,965,952.80x = 100,449,002.10 × 26,576,436.80
  4. Step 4: Simplify right side
    66,965,952.80x = 2,669,576,555,933,717
  5. Step 5: Solve for x
    x = 2,669,576,555,933,717/66,965,952.80
  6. Step 6: Final answer
    x = 39,864,684.13

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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.