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Finding the Fourth Proportional to 185,138.72, 277,650.65 and 66,794.67

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Solution

The fourth proportional to 185,138.72, 277,650.65 and 66,794.67 is: 100,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,138.72 : 277,650.65 = 66,794.67 : x
  2. Step 2: Convert to fraction form
    185,138.72/277,650.65 = 66,794.67/x
  3. Step 3: Cross multiply
    185,138.72x = 277,650.65 × 66,794.67
  4. Step 4: Simplify right side
    185,138.72x = 18,545,583,208.06
  5. Step 5: Solve for x
    x = 18,545,583,208.06/185,138.72
  6. Step 6: Final answer
    x = 100,171.29

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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.