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Finding the Fourth Proportional to 192,804.28, 266,067.30 and 107,921.32

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Solution

The fourth proportional to 192,804.28, 266,067.30 and 107,921.32 is: 148,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,804.28 : 266,067.30 = 107,921.32 : x
  2. Step 2: Convert to fraction form
    192,804.28/266,067.30 = 107,921.32/x
  3. Step 3: Cross multiply
    192,804.28x = 266,067.30 × 107,921.32
  4. Step 4: Simplify right side
    192,804.28x = 28,714,334,224.84
  5. Step 5: Solve for x
    x = 28,714,334,224.84/192,804.28
  6. Step 6: Final answer
    x = 148,929.96

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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.