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Finding the Fourth Proportional to 101,297.27, 139,795.11 and 61,023.66

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Solution

The fourth proportional to 101,297.27, 139,795.11 and 61,023.66 is: 84,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,297.27 : 139,795.11 = 61,023.66 : x
  2. Step 2: Convert to fraction form
    101,297.27/139,795.11 = 61,023.66/x
  3. Step 3: Cross multiply
    101,297.27x = 139,795.11 × 61,023.66
  4. Step 4: Simplify right side
    101,297.27x = 8,530,809,262.30
  5. Step 5: Solve for x
    x = 8,530,809,262.30/101,297.27
  6. Step 6: Final answer
    x = 84,215.59

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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.