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Finding the Fourth Proportional to 303,898.86, 419,379.39 and 167,929.02

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Solution

The fourth proportional to 303,898.86, 419,379.39 and 167,929.02 is: 231,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,898.86 : 419,379.39 = 167,929.02 : x
  2. Step 2: Convert to fraction form
    303,898.86/419,379.39 = 167,929.02/x
  3. Step 3: Cross multiply
    303,898.86x = 419,379.39 × 167,929.02
  4. Step 4: Simplify right side
    303,898.86x = 70,425,969,970.90
  5. Step 5: Solve for x
    x = 70,425,969,970.90/303,898.86
  6. Step 6: Final answer
    x = 231,741.47

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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.