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Finding the Fourth Proportional to 154,992.69, 214,039.87 and 133,571.03

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Solution

The fourth proportional to 154,992.69, 214,039.87 and 133,571.03 is: 184,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,992.69 : 214,039.87 = 133,571.03 : x
  2. Step 2: Convert to fraction form
    154,992.69/214,039.87 = 133,571.03/x
  3. Step 3: Cross multiply
    154,992.69x = 214,039.87 × 133,571.03
  4. Step 4: Simplify right side
    154,992.69x = 28,589,524,492.84
  5. Step 5: Solve for x
    x = 28,589,524,492.84/154,992.69
  6. Step 6: Final answer
    x = 184,457.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.