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Finding the Fourth Proportional to 101,161.44, 139,655.22 and 73,906.92

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Solution

The fourth proportional to 101,161.44, 139,655.22 and 73,906.92 is: 102,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,161.44 : 139,655.22 = 73,906.92 : x
  2. Step 2: Convert to fraction form
    101,161.44/139,655.22 = 73,906.92/x
  3. Step 3: Cross multiply
    101,161.44x = 139,655.22 × 73,906.92
  4. Step 4: Simplify right side
    101,161.44x = 10,321,487,172.12
  5. Step 5: Solve for x
    x = 10,321,487,172.12/101,161.44
  6. Step 6: Final answer
    x = 102,029.86

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1.5x scale

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.