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Finding the Fourth Proportional to 77,324.51, 115,903.83 and 50,660.42

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Solution

The fourth proportional to 77,324.51, 115,903.83 and 50,660.42 is: 75,936.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,324.51 : 115,903.83 = 50,660.42 : x
  2. Step 2: Convert to fraction form
    77,324.51/115,903.83 = 50,660.42/x
  3. Step 3: Cross multiply
    77,324.51x = 115,903.83 × 50,660.42
  4. Step 4: Simplify right side
    77,324.51x = 5,871,736,127.89
  5. Step 5: Solve for x
    x = 5,871,736,127.89/77,324.51
  6. Step 6: Final answer
    x = 75,936.29

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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.