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Finding the Fourth Proportional to 218,626.63, 327,939.94 and 125,066.77

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Solution

The fourth proportional to 218,626.63, 327,939.94 and 125,066.77 is: 187,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,626.63 : 327,939.94 = 125,066.77 : x
  2. Step 2: Convert to fraction form
    218,626.63/327,939.94 = 125,066.77/x
  3. Step 3: Cross multiply
    218,626.63x = 327,939.94 × 125,066.77
  4. Step 4: Simplify right side
    218,626.63x = 41,014,389,049.79
  5. Step 5: Solve for x
    x = 41,014,389,049.79/218,626.63
  6. Step 6: Final answer
    x = 187,600.15

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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.