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Finding the Fourth Proportional to 184,428.90, 276,578.55 and 84,636.90

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Solution

The fourth proportional to 184,428.90, 276,578.55 and 84,636.90 is: 126,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,428.90 : 276,578.55 = 84,636.90 : x
  2. Step 2: Convert to fraction form
    184,428.90/276,578.55 = 84,636.90/x
  3. Step 3: Cross multiply
    184,428.90x = 276,578.55 × 84,636.90
  4. Step 4: Simplify right side
    184,428.90x = 23,408,751,078.50
  5. Step 5: Solve for x
    x = 23,408,751,078.50/184,428.90
  6. Step 6: Final answer
    x = 126,925.61

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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.