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Finding the Fourth Proportional to 173,408.55, 260,112.83 and 111,200.55

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Solution

The fourth proportional to 173,408.55, 260,112.83 and 111,200.55 is: 166,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,408.55 : 260,112.83 = 111,200.55 : x
  2. Step 2: Convert to fraction form
    173,408.55/260,112.83 = 111,200.55/x
  3. Step 3: Cross multiply
    173,408.55x = 260,112.83 × 111,200.55
  4. Step 4: Simplify right side
    173,408.55x = 28,924,689,202.05
  5. Step 5: Solve for x
    x = 28,924,689,202.05/173,408.55
  6. Step 6: Final answer
    x = 166,800.83

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1.5x scale

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.