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Finding the Fourth Proportional to 81,383.44, 122,304.48 and 48,119.08

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Solution

The fourth proportional to 81,383.44, 122,304.48 and 48,119.08 is: 72,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,383.44 : 122,304.48 = 48,119.08 : x
  2. Step 2: Convert to fraction form
    81,383.44/122,304.48 = 48,119.08/x
  3. Step 3: Cross multiply
    81,383.44x = 122,304.48 × 48,119.08
  4. Step 4: Simplify right side
    81,383.44x = 5,885,179,057.48
  5. Step 5: Solve for x
    x = 5,885,179,057.48/81,383.44
  6. Step 6: Final answer
    x = 72,314.21

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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.