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Finding the Fourth Proportional to 303,825.69, 419,279.49 and 176,509.49

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Solution

The fourth proportional to 303,825.69, 419,279.49 and 176,509.49 is: 243,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,825.69 : 419,279.49 = 176,509.49 : x
  2. Step 2: Convert to fraction form
    303,825.69/419,279.49 = 176,509.49/x
  3. Step 3: Cross multiply
    303,825.69x = 419,279.49 × 176,509.49
  4. Step 4: Simplify right side
    303,825.69x = 74,006,806,850.96
  5. Step 5: Solve for x
    x = 74,006,806,850.96/303,825.69
  6. Step 6: Final answer
    x = 243,583.11

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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.