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Finding the Fourth Proportional to 303,495.45, 418,823.79 and 167,529.48

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Solution

The fourth proportional to 303,495.45, 418,823.79 and 167,529.48 is: 231,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,495.45 : 418,823.79 = 167,529.48 : x
  2. Step 2: Convert to fraction form
    303,495.45/418,823.79 = 167,529.48/x
  3. Step 3: Cross multiply
    303,495.45x = 418,823.79 × 167,529.48
  4. Step 4: Simplify right side
    303,495.45x = 70,165,331,750.33
  5. Step 5: Solve for x
    x = 70,165,331,750.33/303,495.45
  6. Step 6: Final answer
    x = 231,190.72

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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.