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Finding the Fourth Proportional to 185,156.78, 277,735.58 and 66,911.63

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Solution

The fourth proportional to 185,156.78, 277,735.58 and 66,911.63 is: 100,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,156.78 : 277,735.58 = 66,911.63 : x
  2. Step 2: Convert to fraction form
    185,156.78/277,735.58 = 66,911.63/x
  3. Step 3: Cross multiply
    185,156.78x = 277,735.58 × 66,911.63
  4. Step 4: Simplify right side
    185,156.78x = 18,583,740,366.80
  5. Step 5: Solve for x
    x = 18,583,740,366.80/185,156.78
  6. Step 6: Final answer
    x = 100,367.59

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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.