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Finding the Fourth Proportional to 68,662.80, 102,994.20 and 24,289.20

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Solution

The fourth proportional to 68,662.80, 102,994.20 and 24,289.20 is: 36,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,662.80 : 102,994.20 = 24,289.20 : x
  2. Step 2: Convert to fraction form
    68,662.80/102,994.20 = 24,289.20/x
  3. Step 3: Cross multiply
    68,662.80x = 102,994.20 × 24,289.20
  4. Step 4: Simplify right side
    68,662.80x = 2,501,646,722.64
  5. Step 5: Solve for x
    x = 2,501,646,722.64/68,662.80
  6. Step 6: Final answer
    x = 36,433.80

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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.