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Finding the Fourth Proportional to 68,807.88, 103,202.10 and 22,054.68

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Solution

The fourth proportional to 68,807.88, 103,202.10 and 22,054.68 is: 33,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,807.88 : 103,202.10 = 22,054.68 : x
  2. Step 2: Convert to fraction form
    68,807.88/103,202.10 = 22,054.68/x
  3. Step 3: Cross multiply
    68,807.88x = 103,202.10 × 22,054.68
  4. Step 4: Simplify right side
    68,807.88x = 2,276,089,290.83
  5. Step 5: Solve for x
    x = 2,276,089,290.83/68,807.88
  6. Step 6: Final answer
    x = 33,078.90

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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.