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Finding the Fourth Proportional to 81,682,486.60, 114,440,511.80 and 81,682,486.60

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Solution

The fourth proportional to 81,682,486.60, 114,440,511.80 and 81,682,486.60 is: 114,440,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,682,486.60 : 114,440,511.80 = 81,682,486.60 : x
  2. Step 2: Convert to fraction form
    81,682,486.60/114,440,511.80 = 81,682,486.60/x
  3. Step 3: Cross multiply
    81,682,486.60x = 114,440,511.80 × 81,682,486.60
  4. Step 4: Simplify right side
    81,682,486.60x = 9,347,785,571,600,640
  5. Step 5: Solve for x
    x = 9,347,785,571,600,640/81,682,486.60
  6. Step 6: Final answer
    x = 114,440,511.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.