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Finding the Fourth Proportional to 81,459.52, 122,087.22 and 44,018.08

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Solution

The fourth proportional to 81,459.52, 122,087.22 and 44,018.08 is: 65,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459.52 : 122,087.22 = 44,018.08 : x
  2. Step 2: Convert to fraction form
    81,459.52/122,087.22 = 44,018.08/x
  3. Step 3: Cross multiply
    81,459.52x = 122,087.22 × 44,018.08
  4. Step 4: Simplify right side
    81,459.52x = 5,374,045,016.94
  5. Step 5: Solve for x
    x = 5,374,045,016.94/81,459.52
  6. Step 6: Final answer
    x = 65,971.97

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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.