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Finding the Fourth Proportional to 347,240.50, 520,912.75 and 125,676.34

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Solution

The fourth proportional to 347,240.50, 520,912.75 and 125,676.34 is: 188,533.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,240.50 : 520,912.75 = 125,676.34 : x
  2. Step 2: Convert to fraction form
    347,240.50/520,912.75 = 125,676.34/x
  3. Step 3: Cross multiply
    347,240.50x = 520,912.75 × 125,676.34
  4. Step 4: Simplify right side
    347,240.50x = 65,466,407,879.34
  5. Step 5: Solve for x
    x = 65,466,407,879.34/347,240.50
  6. Step 6: Final answer
    x = 188,533.33

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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.