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Finding the Fourth Proportional to 185,138.22, 277,649.90 and 66,794.17

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Solution

The fourth proportional to 185,138.22, 277,649.90 and 66,794.17 is: 100,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,138.22 : 277,649.90 = 66,794.17 : x
  2. Step 2: Convert to fraction form
    185,138.22/277,649.90 = 66,794.17/x
  3. Step 3: Cross multiply
    185,138.22x = 277,649.90 × 66,794.17
  4. Step 4: Simplify right side
    185,138.22x = 18,545,394,287.11
  5. Step 5: Solve for x
    x = 18,545,394,287.11/185,138.22
  6. Step 6: Final answer
    x = 100,170.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.