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Finding the Fourth Proportional to 61,705.69, 85,162.94 and 36,226.11

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Solution

The fourth proportional to 61,705.69, 85,162.94 and 36,226.11 is: 49,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,705.69 : 85,162.94 = 36,226.11 : x
  2. Step 2: Convert to fraction form
    61,705.69/85,162.94 = 36,226.11/x
  3. Step 3: Cross multiply
    61,705.69x = 85,162.94 × 36,226.11
  4. Step 4: Simplify right side
    61,705.69x = 3,085,122,270.69
  5. Step 5: Solve for x
    x = 3,085,122,270.69/61,705.69
  6. Step 6: Final answer
    x = 49,997.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.