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Finding the Fourth Proportional to 185,791.66, 256,388.26 and 100,906.90

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Solution

The fourth proportional to 185,791.66, 256,388.26 and 100,906.90 is: 139,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,791.66 : 256,388.26 = 100,906.90 : x
  2. Step 2: Convert to fraction form
    185,791.66/256,388.26 = 100,906.90/x
  3. Step 3: Cross multiply
    185,791.66x = 256,388.26 × 100,906.90
  4. Step 4: Simplify right side
    185,791.66x = 25,871,344,512.99
  5. Step 5: Solve for x
    x = 25,871,344,512.99/185,791.66
  6. Step 6: Final answer
    x = 139,249.22

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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.