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Finding the Fourth Proportional to 68,627,886.80, 102,941,830.20 and 23,189,025.20

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Solution

The fourth proportional to 68,627,886.80, 102,941,830.20 and 23,189,025.20 is: 34,783,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,627,886.80 : 102,941,830.20 = 23,189,025.20 : x
  2. Step 2: Convert to fraction form
    68,627,886.80/102,941,830.20 = 23,189,025.20/x
  3. Step 3: Cross multiply
    68,627,886.80x = 102,941,830.20 × 23,189,025.20
  4. Step 4: Simplify right side
    68,627,886.80x = 2,387,120,694,641,921
  5. Step 5: Solve for x
    x = 2,387,120,694,641,921/68,627,886.80
  6. Step 6: Final answer
    x = 34,783,537.80

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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.