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Finding the Fourth Proportional to 175,507,978.80, 263,261,968.20 and 89,414,536.80

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Solution

The fourth proportional to 175,507,978.80, 263,261,968.20 and 89,414,536.80 is: 134,121,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,507,978.80 : 263,261,968.20 = 89,414,536.80 : x
  2. Step 2: Convert to fraction form
    175,507,978.80/263,261,968.20 = 89,414,536.80/x
  3. Step 3: Cross multiply
    175,507,978.80x = 263,261,968.20 × 89,414,536.80
  4. Step 4: Simplify right side
    175,507,978.80x = 23,539,446,943,659,328
  5. Step 5: Solve for x
    x = 23,539,446,943,659,328/175,507,978.80
  6. Step 6: Final answer
    x = 134,121,805.20

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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.