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Finding the Fourth Proportional to 111,796,720.40, 167,595,353.40 and 43,623,556.40

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Solution

The fourth proportional to 111,796,720.40, 167,595,353.40 and 43,623,556.40 is: 65,396,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,796,720.40 : 167,595,353.40 = 43,623,556.40 : x
  2. Step 2: Convert to fraction form
    111,796,720.40/167,595,353.40 = 43,623,556.40/x
  3. Step 3: Cross multiply
    111,796,720.40x = 167,595,353.40 × 43,623,556.40
  4. Step 4: Simplify right side
    111,796,720.40x = 7,311,105,351,422,832
  5. Step 5: Solve for x
    x = 7,311,105,351,422,832/111,796,720.40
  6. Step 6: Final answer
    x = 65,396,420.62

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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.