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Finding the Fourth Proportional to 303,495.76, 418,824.22 and 167,529.78

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Solution

The fourth proportional to 303,495.76, 418,824.22 and 167,529.78 is: 231,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,495.76 : 418,824.22 = 167,529.78 : x
  2. Step 2: Convert to fraction form
    303,495.76/418,824.22 = 167,529.78/x
  3. Step 3: Cross multiply
    303,495.76x = 418,824.22 × 167,529.78
  4. Step 4: Simplify right side
    303,495.76x = 70,165,529,435.27
  5. Step 5: Solve for x
    x = 70,165,529,435.27/303,495.76
  6. Step 6: Final answer
    x = 231,191.14

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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.