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Finding the Fourth Proportional to 81,887.74, 122,577.36 and 44,354.60

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Solution

The fourth proportional to 81,887.74, 122,577.36 and 44,354.60 is: 66,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,887.74 : 122,577.36 = 44,354.60 : x
  2. Step 2: Convert to fraction form
    81,887.74/122,577.36 = 44,354.60/x
  3. Step 3: Cross multiply
    81,887.74x = 122,577.36 × 44,354.60
  4. Step 4: Simplify right side
    81,887.74x = 5,436,869,771.86
  5. Step 5: Solve for x
    x = 5,436,869,771.86/81,887.74
  6. Step 6: Final answer
    x = 66,394.19

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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.