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Finding the Fourth Proportional to 236,085.54, 354,127.74 and 73,992

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Solution

The fourth proportional to 236,085.54, 354,127.74 and 73,992 is: 110,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,085.54 : 354,127.74 = 73,992 : x
  2. Step 2: Convert to fraction form
    236,085.54/354,127.74 = 73,992/x
  3. Step 3: Cross multiply
    236,085.54x = 354,127.74 × 73,992
  4. Step 4: Simplify right side
    236,085.54x = 26,202,619,738.08
  5. Step 5: Solve for x
    x = 26,202,619,738.08/236,085.54
  6. Step 6: Final answer
    x = 110,987.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.