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Finding the Fourth Proportional to 73,926.68, 110,877.86 and 20,622.30

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Solution

The fourth proportional to 73,926.68, 110,877.86 and 20,622.30 is: 30,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,926.68 : 110,877.86 = 20,622.30 : x
  2. Step 2: Convert to fraction form
    73,926.68/110,877.86 = 20,622.30/x
  3. Step 3: Cross multiply
    73,926.68x = 110,877.86 × 20,622.30
  4. Step 4: Simplify right side
    73,926.68x = 2,286,556,128.04
  5. Step 5: Solve for x
    x = 2,286,556,128.04/73,926.68
  6. Step 6: Final answer
    x = 30,930.06

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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.