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Finding the Fourth Proportional to 172,723.86, 259,057.54 and 122,652.49

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Solution

The fourth proportional to 172,723.86, 259,057.54 and 122,652.49 is: 183,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,723.86 : 259,057.54 = 122,652.49 : x
  2. Step 2: Convert to fraction form
    172,723.86/259,057.54 = 122,652.49/x
  3. Step 3: Cross multiply
    172,723.86x = 259,057.54 × 122,652.49
  4. Step 4: Simplify right side
    172,723.86x = 31,774,052,334.27
  5. Step 5: Solve for x
    x = 31,774,052,334.27/172,723.86
  6. Step 6: Final answer
    x = 183,958.67

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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.