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Finding the Fourth Proportional to 81,413,169.80, 114,280,768.60 and 81,413,169.80

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Solution

The fourth proportional to 81,413,169.80, 114,280,768.60 and 81,413,169.80 is: 114,280,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,413,169.80 : 114,280,768.60 = 81,413,169.80 : x
  2. Step 2: Convert to fraction form
    81,413,169.80/114,280,768.60 = 81,413,169.80/x
  3. Step 3: Cross multiply
    81,413,169.80x = 114,280,768.60 × 81,413,169.80
  4. Step 4: Simplify right side
    81,413,169.80x = 9,303,959,618,906,308
  5. Step 5: Solve for x
    x = 9,303,959,618,906,308/81,413,169.80
  6. Step 6: Final answer
    x = 114,280,768.60

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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.