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Finding the Fourth Proportional to 82,716.68, 124,076.64 and 23,553.87

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Solution

The fourth proportional to 82,716.68, 124,076.64 and 23,553.87 is: 35,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,716.68 : 124,076.64 = 23,553.87 : x
  2. Step 2: Convert to fraction form
    82,716.68/124,076.64 = 23,553.87/x
  3. Step 3: Cross multiply
    82,716.68x = 124,076.64 × 23,553.87
  4. Step 4: Simplify right side
    82,716.68x = 2,922,485,048.60
  5. Step 5: Solve for x
    x = 2,922,485,048.60/82,716.68
  6. Step 6: Final answer
    x = 35,331.27

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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.