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Finding the Fourth Proportional to 185,155.78, 277,734.08 and 66,910.63

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Solution

The fourth proportional to 185,155.78, 277,734.08 and 66,910.63 is: 100,366.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,155.78 : 277,734.08 = 66,910.63 : x
  2. Step 2: Convert to fraction form
    185,155.78/277,734.08 = 66,910.63/x
  3. Step 3: Cross multiply
    185,155.78x = 277,734.08 × 66,910.63
  4. Step 4: Simplify right side
    185,155.78x = 18,583,362,265.27
  5. Step 5: Solve for x
    x = 18,583,362,265.27/185,155.78
  6. Step 6: Final answer
    x = 100,366.09

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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.