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Finding the Fourth Proportional to 74,727.78, 102,914.37 and 73,094.82

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Solution

The fourth proportional to 74,727.78, 102,914.37 and 73,094.82 is: 100,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,727.78 : 102,914.37 = 73,094.82 : x
  2. Step 2: Convert to fraction form
    74,727.78/102,914.37 = 73,094.82/x
  3. Step 3: Cross multiply
    74,727.78x = 102,914.37 × 73,094.82
  4. Step 4: Simplify right side
    74,727.78x = 7,522,507,350.56
  5. Step 5: Solve for x
    x = 7,522,507,350.56/74,727.78
  6. Step 6: Final answer
    x = 100,665.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.