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Finding the Fourth Proportional to 80,846.37, 110,760.06 and 77,816.15

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Solution

The fourth proportional to 80,846.37, 110,760.06 and 77,816.15 is: 106,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,846.37 : 110,760.06 = 77,816.15 : x
  2. Step 2: Convert to fraction form
    80,846.37/110,760.06 = 77,816.15/x
  3. Step 3: Cross multiply
    80,846.37x = 110,760.06 × 77,816.15
  4. Step 4: Simplify right side
    80,846.37x = 8,618,921,442.97
  5. Step 5: Solve for x
    x = 8,618,921,442.97/80,846.37
  6. Step 6: Final answer
    x = 106,608.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.