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Finding the Fourth Proportional to 392,025.42, 587,982.78 and 125,751.29

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Solution

The fourth proportional to 392,025.42, 587,982.78 and 125,751.29 is: 188,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,025.42 : 587,982.78 = 125,751.29 : x
  2. Step 2: Convert to fraction form
    392,025.42/587,982.78 = 125,751.29/x
  3. Step 3: Cross multiply
    392,025.42x = 587,982.78 × 125,751.29
  4. Step 4: Simplify right side
    392,025.42x = 73,939,590,142.87
  5. Step 5: Solve for x
    x = 73,939,590,142.87/392,025.42
  6. Step 6: Final answer
    x = 188,609.17

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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.