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Finding the Fourth Proportional to 118,896.28, 178,218.66 and 43,968.28

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Solution

The fourth proportional to 118,896.28, 178,218.66 and 43,968.28 is: 65,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,896.28 : 178,218.66 = 43,968.28 : x
  2. Step 2: Convert to fraction form
    118,896.28/178,218.66 = 43,968.28/x
  3. Step 3: Cross multiply
    118,896.28x = 178,218.66 × 43,968.28
  4. Step 4: Simplify right side
    118,896.28x = 7,835,967,944.10
  5. Step 5: Solve for x
    x = 7,835,967,944.10/118,896.28
  6. Step 6: Final answer
    x = 65,905.91

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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.