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Finding the Fourth Proportional to 185,879.08, 256,512.72 and 100,996.48

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Solution

The fourth proportional to 185,879.08, 256,512.72 and 100,996.48 is: 139,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,879.08 : 256,512.72 = 100,996.48 : x
  2. Step 2: Convert to fraction form
    185,879.08/256,512.72 = 100,996.48/x
  3. Step 3: Cross multiply
    185,879.08x = 256,512.72 × 100,996.48
  4. Step 4: Simplify right side
    185,879.08x = 25,906,881,795.23
  5. Step 5: Solve for x
    x = 25,906,881,795.23/185,879.08
  6. Step 6: Final answer
    x = 139,374.92

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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.