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Finding the Fourth Proportional to 115,810.44, 173,745.61 and 67,819.58

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Solution

The fourth proportional to 115,810.44, 173,745.61 and 67,819.58 is: 101,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,810.44 : 173,745.61 = 67,819.58 : x
  2. Step 2: Convert to fraction form
    115,810.44/173,745.61 = 67,819.58/x
  3. Step 3: Cross multiply
    115,810.44x = 173,745.61 × 67,819.58
  4. Step 4: Simplify right side
    115,810.44x = 11,783,353,597.86
  5. Step 5: Solve for x
    x = 11,783,353,597.86/115,810.44
  6. Step 6: Final answer
    x = 101,746.90

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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.