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Finding the Fourth Proportional to 246,448.64, 340,098.72 and 139,018.34

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Solution

The fourth proportional to 246,448.64, 340,098.72 and 139,018.34 is: 191,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,448.64 : 340,098.72 = 139,018.34 : x
  2. Step 2: Convert to fraction form
    246,448.64/340,098.72 = 139,018.34/x
  3. Step 3: Cross multiply
    246,448.64x = 340,098.72 × 139,018.34
  4. Step 4: Simplify right side
    246,448.64x = 47,279,959,490.52
  5. Step 5: Solve for x
    x = 47,279,959,490.52/246,448.64
  6. Step 6: Final answer
    x = 191,845.08

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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.