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Finding the Fourth Proportional to 136,608.22, 205,003.23 and 47,861.56

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Solution

The fourth proportional to 136,608.22, 205,003.23 and 47,861.56 is: 71,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,608.22 : 205,003.23 = 47,861.56 : x
  2. Step 2: Convert to fraction form
    136,608.22/205,003.23 = 47,861.56/x
  3. Step 3: Cross multiply
    136,608.22x = 205,003.23 × 47,861.56
  4. Step 4: Simplify right side
    136,608.22x = 9,811,774,392.84
  5. Step 5: Solve for x
    x = 9,811,774,392.84/136,608.22
  6. Step 6: Final answer
    x = 71,824.19

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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.