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Finding the Fourth Proportional to 73,391.15, 110,086.52 and 20,801.09

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Solution

The fourth proportional to 73,391.15, 110,086.52 and 20,801.09 is: 31,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,391.15 : 110,086.52 = 20,801.09 : x
  2. Step 2: Convert to fraction form
    73,391.15/110,086.52 = 20,801.09/x
  3. Step 3: Cross multiply
    73,391.15x = 110,086.52 × 20,801.09
  4. Step 4: Simplify right side
    73,391.15x = 2,289,918,955.87
  5. Step 5: Solve for x
    x = 2,289,918,955.87/73,391.15
  6. Step 6: Final answer
    x = 31,201.57

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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.