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Finding the Fourth Proportional to 68,284,936.80, 102,427,405.20 and 68,284,936.80

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Solution

The fourth proportional to 68,284,936.80, 102,427,405.20 and 68,284,936.80 is: 102,427,405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,284,936.80 : 102,427,405.20 = 68,284,936.80 : x
  2. Step 2: Convert to fraction form
    68,284,936.80/102,427,405.20 = 68,284,936.80/x
  3. Step 3: Cross multiply
    68,284,936.80x = 102,427,405.20 × 68,284,936.80
  4. Step 4: Simplify right side
    68,284,936.80x = 6,994,248,890,669,991
  5. Step 5: Solve for x
    x = 6,994,248,890,669,991/68,284,936.80
  6. Step 6: Final answer
    x = 102,427,405.20

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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.