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Finding the Fourth Proportional to 107,921.58, 161,843.49 and 45,596.94

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Solution

The fourth proportional to 107,921.58, 161,843.49 and 45,596.94 is: 68,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,921.58 : 161,843.49 = 45,596.94 : x
  2. Step 2: Convert to fraction form
    107,921.58/161,843.49 = 45,596.94/x
  3. Step 3: Cross multiply
    107,921.58x = 161,843.49 × 45,596.94
  4. Step 4: Simplify right side
    107,921.58x = 7,379,567,902.92
  5. Step 5: Solve for x
    x = 7,379,567,902.92/107,921.58
  6. Step 6: Final answer
    x = 68,378.98

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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.