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Finding the Fourth Proportional to 49,201.28, 73,800 and 14,140.80

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Solution

The fourth proportional to 49,201.28, 73,800 and 14,140.80 is: 21,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,201.28 : 73,800 = 14,140.80 : x
  2. Step 2: Convert to fraction form
    49,201.28/73,800 = 14,140.80/x
  3. Step 3: Cross multiply
    49,201.28x = 73,800 × 14,140.80
  4. Step 4: Simplify right side
    49,201.28x = 1,043,591,040
  5. Step 5: Solve for x
    x = 1,043,591,040/49,201.28
  6. Step 6: Final answer
    x = 21,210.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.