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Finding the Fourth Proportional to 187,212.70, 280,819.05 and 184,447.90

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Solution

The fourth proportional to 187,212.70, 280,819.05 and 184,447.90 is: 276,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,212.70 : 280,819.05 = 184,447.90 : x
  2. Step 2: Convert to fraction form
    187,212.70/280,819.05 = 184,447.90/x
  3. Step 3: Cross multiply
    187,212.70x = 280,819.05 × 184,447.90
  4. Step 4: Simplify right side
    187,212.70x = 51,796,484,052.50
  5. Step 5: Solve for x
    x = 51,796,484,052.50/187,212.70
  6. Step 6: Final answer
    x = 276,671.85

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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.