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Finding the Fourth Proportional to 111,182.84, 166,448.94 and 68,935.47

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Solution

The fourth proportional to 111,182.84, 166,448.94 and 68,935.47 is: 103,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,182.84 : 166,448.94 = 68,935.47 : x
  2. Step 2: Convert to fraction form
    111,182.84/166,448.94 = 68,935.47/x
  3. Step 3: Cross multiply
    111,182.84x = 166,448.94 × 68,935.47
  4. Step 4: Simplify right side
    111,182.84x = 11,474,235,077.66
  5. Step 5: Solve for x
    x = 11,474,235,077.66/111,182.84
  6. Step 6: Final answer
    x = 103,201.49

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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.