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Finding the Fourth Proportional to 139,714.44, 192,798.08 and 76,048.44

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Solution

The fourth proportional to 139,714.44, 192,798.08 and 76,048.44 is: 104,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,714.44 : 192,798.08 = 76,048.44 : x
  2. Step 2: Convert to fraction form
    139,714.44/192,798.08 = 76,048.44/x
  3. Step 3: Cross multiply
    139,714.44x = 192,798.08 × 76,048.44
  4. Step 4: Simplify right side
    139,714.44x = 14,661,993,219.00
  5. Step 5: Solve for x
    x = 14,661,993,219.00/139,714.44
  6. Step 6: Final answer
    x = 104,942.58

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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.