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Finding the Fourth Proportional to 73,620.20, 110,211.60 and 73,620.20

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Solution

The fourth proportional to 73,620.20, 110,211.60 and 73,620.20 is: 110,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,620.20 : 110,211.60 = 73,620.20 : x
  2. Step 2: Convert to fraction form
    73,620.20/110,211.60 = 73,620.20/x
  3. Step 3: Cross multiply
    73,620.20x = 110,211.60 × 73,620.20
  4. Step 4: Simplify right side
    73,620.20x = 8,113,800,034.32
  5. Step 5: Solve for x
    x = 8,113,800,034.32/73,620.20
  6. Step 6: Final answer
    x = 110,211.60

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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.