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Finding the Fourth Proportional to 111,859.60, 167,616.60 and 96,998.80

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Solution

The fourth proportional to 111,859.60, 167,616.60 and 96,998.80 is: 145,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.60 : 167,616.60 = 96,998.80 : x
  2. Step 2: Convert to fraction form
    111,859.60/167,616.60 = 96,998.80/x
  3. Step 3: Cross multiply
    111,859.60x = 167,616.60 × 96,998.80
  4. Step 4: Simplify right side
    111,859.60x = 16,258,609,060.08
  5. Step 5: Solve for x
    x = 16,258,609,060.08/111,859.60
  6. Step 6: Final answer
    x = 145,348.36

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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.