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Finding the Fourth Proportional to 303,144.96, 418,321.92 and 167,172.48

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Solution

The fourth proportional to 303,144.96, 418,321.92 and 167,172.48 is: 230,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,144.96 : 418,321.92 = 167,172.48 : x
  2. Step 2: Convert to fraction form
    303,144.96/418,321.92 = 167,172.48/x
  3. Step 3: Cross multiply
    303,144.96x = 418,321.92 × 167,172.48
  4. Step 4: Simplify right side
    303,144.96x = 69,931,912,804.76
  5. Step 5: Solve for x
    x = 69,931,912,804.76/303,144.96
  6. Step 6: Final answer
    x = 230,688.03

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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.