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Finding the Fourth Proportional to 111,858.60, 167,615.10 and 96,997.80

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Solution

The fourth proportional to 111,858.60, 167,615.10 and 96,997.80 is: 145,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,858.60 : 167,615.10 = 96,997.80 : x
  2. Step 2: Convert to fraction form
    111,858.60/167,615.10 = 96,997.80/x
  3. Step 3: Cross multiply
    111,858.60x = 167,615.10 × 96,997.80
  4. Step 4: Simplify right side
    111,858.60x = 16,258,295,946.78
  5. Step 5: Solve for x
    x = 16,258,295,946.78/111,858.60
  6. Step 6: Final answer
    x = 145,346.86

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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.