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Finding the Fourth Proportional to 246,791.88, 340,570.17 and 139,355.64

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Solution

The fourth proportional to 246,791.88, 340,570.17 and 139,355.64 is: 192,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,791.88 : 340,570.17 = 139,355.64 : x
  2. Step 2: Convert to fraction form
    246,791.88/340,570.17 = 139,355.64/x
  3. Step 3: Cross multiply
    246,791.88x = 340,570.17 × 139,355.64
  4. Step 4: Simplify right side
    246,791.88x = 47,460,374,005.26
  5. Step 5: Solve for x
    x = 47,460,374,005.26/246,791.88
  6. Step 6: Final answer
    x = 192,309.30

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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.