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Finding the Fourth Proportional to 185,051.44, 255,369.90 and 100,168.48

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Solution

The fourth proportional to 185,051.44, 255,369.90 and 100,168.48 is: 138,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,051.44 : 255,369.90 = 100,168.48 : x
  2. Step 2: Convert to fraction form
    185,051.44/255,369.90 = 100,168.48/x
  3. Step 3: Cross multiply
    185,051.44x = 255,369.90 × 100,168.48
  4. Step 4: Simplify right side
    185,051.44x = 25,580,014,720.75
  5. Step 5: Solve for x
    x = 25,580,014,720.75/185,051.44
  6. Step 6: Final answer
    x = 138,231.91

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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.