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Finding the Fourth Proportional to 116,110.40, 173,906.40 and 89,729.60

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Solution

The fourth proportional to 116,110.40, 173,906.40 and 89,729.60 is: 134,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,110.40 : 173,906.40 = 89,729.60 : x
  2. Step 2: Convert to fraction form
    116,110.40/173,906.40 = 89,729.60/x
  3. Step 3: Cross multiply
    116,110.40x = 173,906.40 × 89,729.60
  4. Step 4: Simplify right side
    116,110.40x = 15,604,551,709.44
  5. Step 5: Solve for x
    x = 15,604,551,709.44/116,110.40
  6. Step 6: Final answer
    x = 134,394.09

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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.