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Finding the Fourth Proportional to 112,321,222, 168,481,833 and 27,220,678

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Solution

The fourth proportional to 112,321,222, 168,481,833 and 27,220,678 is: 40,831,017

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321,222 : 168,481,833 = 27,220,678 : x
  2. Step 2: Convert to fraction form
    112,321,222/168,481,833 = 27,220,678/x
  3. Step 3: Cross multiply
    112,321,222x = 168,481,833 × 27,220,678
  4. Step 4: Simplify right side
    112,321,222x = 4,586,189,724,942,774
  5. Step 5: Solve for x
    x = 4,586,189,724,942,774/112,321,222
  6. Step 6: Final answer
    x = 40,831,017

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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.