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Finding the Fourth Proportional to 61,243,136,578.80, 91,864,704,868.20 and 61,243,136,578.80

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Solution

The fourth proportional to 61,243,136,578.80, 91,864,704,868.20 and 61,243,136,578.80 is: 91,864,704,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,243,136,578.80 : 91,864,704,868.20 = 61,243,136,578.80 : x
  2. Step 2: Convert to fraction form
    61,243,136,578.80/91,864,704,868.20 = 61,243,136,578.80/x
  3. Step 3: Cross multiply
    61,243,136,578.80x = 91,864,704,868.20 × 61,243,136,578.80
  4. Step 4: Simplify right side
    61,243,136,578.80x = 5,626,082,667,014,325,796,864
  5. Step 5: Solve for x
    x = 5,626,082,667,014,325,796,864/61,243,136,578.80
  6. Step 6: Final answer
    x = 91,864,704,868.20

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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.