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Finding the Fourth Proportional to 122,942.10, 184,121.55 and 122,942.10

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Solution

The fourth proportional to 122,942.10, 184,121.55 and 122,942.10 is: 184,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,942.10 : 184,121.55 = 122,942.10 : x
  2. Step 2: Convert to fraction form
    122,942.10/184,121.55 = 122,942.10/x
  3. Step 3: Cross multiply
    122,942.10x = 184,121.55 × 122,942.10
  4. Step 4: Simplify right side
    122,942.10x = 22,636,290,012.26
  5. Step 5: Solve for x
    x = 22,636,290,012.26/122,942.10
  6. Step 6: Final answer
    x = 184,121.55

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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.