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Finding the Fourth Proportional to 185,674.38, 256,230.39 and 100,791.45

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Solution

The fourth proportional to 185,674.38, 256,230.39 and 100,791.45 is: 139,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,674.38 : 256,230.39 = 100,791.45 : x
  2. Step 2: Convert to fraction form
    185,674.38/256,230.39 = 100,791.45/x
  3. Step 3: Cross multiply
    185,674.38x = 256,230.39 × 100,791.45
  4. Step 4: Simplify right side
    185,674.38x = 25,825,832,542.17
  5. Step 5: Solve for x
    x = 25,825,832,542.17/185,674.38
  6. Step 6: Final answer
    x = 139,092.06

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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.