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Finding the Fourth Proportional to 185,791.68, 256,388.28 and 100,906.92

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Solution

The fourth proportional to 185,791.68, 256,388.28 and 100,906.92 is: 139,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,791.68 : 256,388.28 = 100,906.92 : x
  2. Step 2: Convert to fraction form
    185,791.68/256,388.28 = 100,906.92/x
  3. Step 3: Cross multiply
    185,791.68x = 256,388.28 × 100,906.92
  4. Step 4: Simplify right side
    185,791.68x = 25,871,351,658.90
  5. Step 5: Solve for x
    x = 25,871,351,658.90/185,791.68
  6. Step 6: Final answer
    x = 139,249.25

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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.