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Finding the Fourth Proportional to 252,878.44, 348,976.74 and 139,694.44

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Solution

The fourth proportional to 252,878.44, 348,976.74 and 139,694.44 is: 192,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,878.44 : 348,976.74 = 139,694.44 : x
  2. Step 2: Convert to fraction form
    252,878.44/348,976.74 = 139,694.44/x
  3. Step 3: Cross multiply
    252,878.44x = 348,976.74 × 139,694.44
  4. Step 4: Simplify right side
    252,878.44x = 48,750,110,267.33
  5. Step 5: Solve for x
    x = 48,750,110,267.33/252,878.44
  6. Step 6: Final answer
    x = 192,780.81

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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.