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Finding the Fourth Proportional to 246,424.92, 340,061.58 and 138,993

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Solution

The fourth proportional to 246,424.92, 340,061.58 and 138,993 is: 191,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,424.92 : 340,061.58 = 138,993 : x
  2. Step 2: Convert to fraction form
    246,424.92/340,061.58 = 138,993/x
  3. Step 3: Cross multiply
    246,424.92x = 340,061.58 × 138,993
  4. Step 4: Simplify right side
    246,424.92x = 47,266,179,188.94
  5. Step 5: Solve for x
    x = 47,266,179,188.94/246,424.92
  6. Step 6: Final answer
    x = 191,807.63

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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.