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Finding the Fourth Proportional to 246,391.86, 340,021.29 and 133,214.61

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Solution

The fourth proportional to 246,391.86, 340,021.29 and 133,214.61 is: 183,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,391.86 : 340,021.29 = 133,214.61 : x
  2. Step 2: Convert to fraction form
    246,391.86/340,021.29 = 133,214.61/x
  3. Step 3: Cross multiply
    246,391.86x = 340,021.29 × 133,214.61
  4. Step 4: Simplify right side
    246,391.86x = 45,295,803,539.05
  5. Step 5: Solve for x
    x = 45,295,803,539.05/246,391.86
  6. Step 6: Final answer
    x = 183,836.44

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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.