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Finding the Fourth Proportional to 73,786,826, 101,868,322.28 and 49,040,571.12

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Solution

The fourth proportional to 73,786,826, 101,868,322.28 and 49,040,571.12 is: 67,704,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,786,826 : 101,868,322.28 = 49,040,571.12 : x
  2. Step 2: Convert to fraction form
    73,786,826/101,868,322.28 = 49,040,571.12/x
  3. Step 3: Cross multiply
    73,786,826x = 101,868,322.28 × 49,040,571.12
  4. Step 4: Simplify right side
    73,786,826x = 4,995,680,703,647,420
  5. Step 5: Solve for x
    x = 4,995,680,703,647,420/73,786,826
  6. Step 6: Final answer
    x = 67,704,236.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.