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Finding the Fourth Proportional to 3,188,103,625,786, 4,782,155,438,678.80 and 3,188,103,625,786

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Solution

The fourth proportional to 3,188,103,625,786, 4,782,155,438,678.80 and 3,188,103,625,786 is: 4,782,155,438,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188,103,625,786 : 4,782,155,438,678.80 = 3,188,103,625,786 : x
  2. Step 2: Convert to fraction form
    3,188,103,625,786/4,782,155,438,678.80 = 3,188,103,625,786/x
  3. Step 3: Cross multiply
    3,188,103,625,786x = 4,782,155,438,678.80 × 3,188,103,625,786
  4. Step 4: Simplify right side
    3,188,103,625,786x = 15,246,007,093,124,121,122,308,096
  5. Step 5: Solve for x
    x = 15,246,007,093,124,121,122,308,096/3,188,103,625,786
  6. Step 6: Final answer
    x = 4,782,155,438,678.80

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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.