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Finding the Fourth Proportional to 539,764,496.73, 809,646,744.87 and 130,820,647.23

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Solution

The fourth proportional to 539,764,496.73, 809,646,744.87 and 130,820,647.23 is: 196,230,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,764,496.73 : 809,646,744.87 = 130,820,647.23 : x
  2. Step 2: Convert to fraction form
    539,764,496.73/809,646,744.87 = 130,820,647.23/x
  3. Step 3: Cross multiply
    539,764,496.73x = 809,646,744.87 × 130,820,647.23
  4. Step 4: Simplify right side
    539,764,496.73x = 105,918,511,191,556,080
  5. Step 5: Solve for x
    x = 105,918,511,191,556,080/539,764,496.73
  6. Step 6: Final answer
    x = 196,230,970.79

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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.