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Finding the Fourth Proportional to 246,732.76, 340,491.36 and 139,303

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Solution

The fourth proportional to 246,732.76, 340,491.36 and 139,303 is: 192,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,732.76 : 340,491.36 = 139,303 : x
  2. Step 2: Convert to fraction form
    246,732.76/340,491.36 = 139,303/x
  3. Step 3: Cross multiply
    246,732.76x = 340,491.36 × 139,303
  4. Step 4: Simplify right side
    246,732.76x = 47,431,467,922.08
  5. Step 5: Solve for x
    x = 47,431,467,922.08/246,732.76
  6. Step 6: Final answer
    x = 192,238.23

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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.