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Finding the Fourth Proportional to 68,539,563.20, 102,809,344.80 and 23,096,619.20

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Solution

The fourth proportional to 68,539,563.20, 102,809,344.80 and 23,096,619.20 is: 34,644,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,539,563.20 : 102,809,344.80 = 23,096,619.20 : x
  2. Step 2: Convert to fraction form
    68,539,563.20/102,809,344.80 = 23,096,619.20/x
  3. Step 3: Cross multiply
    68,539,563.20x = 102,809,344.80 × 23,096,619.20
  4. Step 4: Simplify right side
    68,539,563.20x = 2,374,548,287,047,100
  5. Step 5: Solve for x
    x = 2,374,548,287,047,100/68,539,563.20
  6. Step 6: Final answer
    x = 34,644,928.80

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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.