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Finding the Fourth Proportional to 114,728, 171,723.48 and 61,286.36

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Solution

The fourth proportional to 114,728, 171,723.48 and 61,286.36 is: 91,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,728 : 171,723.48 = 61,286.36 : x
  2. Step 2: Convert to fraction form
    114,728/171,723.48 = 61,286.36/x
  3. Step 3: Cross multiply
    114,728x = 171,723.48 × 61,286.36
  4. Step 4: Simplify right side
    114,728x = 10,524,307,015.73
  5. Step 5: Solve for x
    x = 10,524,307,015.73/114,728
  6. Step 6: Final answer
    x = 91,732.68

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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.