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Finding the Fourth Proportional to 68,992.76, 103,499.88 and 22,250.36

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Solution

The fourth proportional to 68,992.76, 103,499.88 and 22,250.36 is: 33,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.76 : 103,499.88 = 22,250.36 : x
  2. Step 2: Convert to fraction form
    68,992.76/103,499.88 = 22,250.36/x
  3. Step 3: Cross multiply
    68,992.76x = 103,499.88 × 22,250.36
  4. Step 4: Simplify right side
    68,992.76x = 2,302,909,589.96
  5. Step 5: Solve for x
    x = 2,302,909,589.96/68,992.76
  6. Step 6: Final answer
    x = 33,379.00

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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.