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Finding the Fourth Proportional to 102,796.40, 154,194.60 and 36,311.60

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Solution

The fourth proportional to 102,796.40, 154,194.60 and 36,311.60 is: 54,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,796.40 : 154,194.60 = 36,311.60 : x
  2. Step 2: Convert to fraction form
    102,796.40/154,194.60 = 36,311.60/x
  3. Step 3: Cross multiply
    102,796.40x = 154,194.60 × 36,311.60
  4. Step 4: Simplify right side
    102,796.40x = 5,599,052,637.36
  5. Step 5: Solve for x
    x = 5,599,052,637.36/102,796.40
  6. Step 6: Final answer
    x = 54,467.40

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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.