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Finding the Fourth Proportional to 85,081.89, 127,622.79 and 35,107.04

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Solution

The fourth proportional to 85,081.89, 127,622.79 and 35,107.04 is: 52,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,081.89 : 127,622.79 = 35,107.04 : x
  2. Step 2: Convert to fraction form
    85,081.89/127,622.79 = 35,107.04/x
  3. Step 3: Cross multiply
    85,081.89x = 127,622.79 × 35,107.04
  4. Step 4: Simplify right side
    85,081.89x = 4,480,458,393.44
  5. Step 5: Solve for x
    x = 4,480,458,393.44/85,081.89
  6. Step 6: Final answer
    x = 52,660.54

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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.