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Finding the Fourth Proportional to 246,462.78, 340,116.03 and 139,067.76

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Solution

The fourth proportional to 246,462.78, 340,116.03 and 139,067.76 is: 191,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,462.78 : 340,116.03 = 139,067.76 : x
  2. Step 2: Convert to fraction form
    246,462.78/340,116.03 = 139,067.76/x
  3. Step 3: Cross multiply
    246,462.78x = 340,116.03 × 139,067.76
  4. Step 4: Simplify right side
    246,462.78x = 47,299,174,432.19
  5. Step 5: Solve for x
    x = 47,299,174,432.19/246,462.78
  6. Step 6: Final answer
    x = 191,912.04

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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.