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Finding the Fourth Proportional to 81,642,516, 122,463,774 and 33,773,460

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Solution

The fourth proportional to 81,642,516, 122,463,774 and 33,773,460 is: 50,660,190

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,642,516 : 122,463,774 = 33,773,460 : x
  2. Step 2: Convert to fraction form
    81,642,516/122,463,774 = 33,773,460/x
  3. Step 3: Cross multiply
    81,642,516x = 122,463,774 × 33,773,460
  4. Step 4: Simplify right side
    81,642,516x = 4,136,025,372,638,040
  5. Step 5: Solve for x
    x = 4,136,025,372,638,040/81,642,516
  6. Step 6: Final answer
    x = 50,660,190

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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.