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Finding the Fourth Proportional to 73,122.42, 100,903.41 and 41,286.90

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Solution

The fourth proportional to 73,122.42, 100,903.41 and 41,286.90 is: 56,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,122.42 : 100,903.41 = 41,286.90 : x
  2. Step 2: Convert to fraction form
    73,122.42/100,903.41 = 41,286.90/x
  3. Step 3: Cross multiply
    73,122.42x = 100,903.41 × 41,286.90
  4. Step 4: Simplify right side
    73,122.42x = 4,165,988,998.33
  5. Step 5: Solve for x
    x = 4,165,988,998.33/73,122.42
  6. Step 6: Final answer
    x = 56,972.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.