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Finding the Fourth Proportional to 81,754.44, 122,678.73 and 34,365.48

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Solution

The fourth proportional to 81,754.44, 122,678.73 and 34,365.48 is: 51,568.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,754.44 : 122,678.73 = 34,365.48 : x
  2. Step 2: Convert to fraction form
    81,754.44/122,678.73 = 34,365.48/x
  3. Step 3: Cross multiply
    81,754.44x = 122,678.73 × 34,365.48
  4. Step 4: Simplify right side
    81,754.44x = 4,215,913,442.24
  5. Step 5: Solve for x
    x = 4,215,913,442.24/81,754.44
  6. Step 6: Final answer
    x = 51,568.01

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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.