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Finding the Fourth Proportional to 115,889.78, 173,912.56 and 41,009.60

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Solution

The fourth proportional to 115,889.78, 173,912.56 and 41,009.60 is: 61,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,889.78 : 173,912.56 = 41,009.60 : x
  2. Step 2: Convert to fraction form
    115,889.78/173,912.56 = 41,009.60/x
  3. Step 3: Cross multiply
    115,889.78x = 173,912.56 × 41,009.60
  4. Step 4: Simplify right side
    115,889.78x = 7,132,084,520.58
  5. Step 5: Solve for x
    x = 7,132,084,520.58/115,889.78
  6. Step 6: Final answer
    x = 61,541.96

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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.