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Finding the Fourth Proportional to 73,477.71, 110,198.57 and 20,170.04

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Solution

The fourth proportional to 73,477.71, 110,198.57 and 20,170.04 is: 30,250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,477.71 : 110,198.57 = 20,170.04 : x
  2. Step 2: Convert to fraction form
    73,477.71/110,198.57 = 20,170.04/x
  3. Step 3: Cross multiply
    73,477.71x = 110,198.57 × 20,170.04
  4. Step 4: Simplify right side
    73,477.71x = 2,222,708,913.00
  5. Step 5: Solve for x
    x = 2,222,708,913.00/73,477.71
  6. Step 6: Final answer
    x = 30,250.11

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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.