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Finding the Fourth Proportional to 308,751.28, 463,062.11 and 87,083.44

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Solution

The fourth proportional to 308,751.28, 463,062.11 and 87,083.44 is: 130,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,751.28 : 463,062.11 = 87,083.44 : x
  2. Step 2: Convert to fraction form
    308,751.28/463,062.11 = 87,083.44/x
  3. Step 3: Cross multiply
    308,751.28x = 463,062.11 × 87,083.44
  4. Step 4: Simplify right side
    308,751.28x = 40,325,040,532.51
  5. Step 5: Solve for x
    x = 40,325,040,532.51/308,751.28
  6. Step 6: Final answer
    x = 130,606.88

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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.