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Finding the Fourth Proportional to 246,479.41, 340,144.88 and 139,049.11

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Solution

The fourth proportional to 246,479.41, 340,144.88 and 139,049.11 is: 191,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,479.41 : 340,144.88 = 139,049.11 : x
  2. Step 2: Convert to fraction form
    246,479.41/340,144.88 = 139,049.11/x
  3. Step 3: Cross multiply
    246,479.41x = 340,144.88 × 139,049.11
  4. Step 4: Simplify right side
    246,479.41x = 47,296,842,835.06
  5. Step 5: Solve for x
    x = 47,296,842,835.06/246,479.41
  6. Step 6: Final answer
    x = 191,889.63

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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.