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Finding the Fourth Proportional to 150,656.43, 207,905.30 and 82,674.54

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Solution

The fourth proportional to 150,656.43, 207,905.30 and 82,674.54 is: 114,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,656.43 : 207,905.30 = 82,674.54 : x
  2. Step 2: Convert to fraction form
    150,656.43/207,905.30 = 82,674.54/x
  3. Step 3: Cross multiply
    150,656.43x = 207,905.30 × 82,674.54
  4. Step 4: Simplify right side
    150,656.43x = 17,188,474,627.69
  5. Step 5: Solve for x
    x = 17,188,474,627.69/150,656.43
  6. Step 6: Final answer
    x = 114,090.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.