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Finding the Fourth Proportional to 117,238.44, 161,767.74 and 65,556.47

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Solution

The fourth proportional to 117,238.44, 161,767.74 and 65,556.47 is: 90,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,238.44 : 161,767.74 = 65,556.47 : x
  2. Step 2: Convert to fraction form
    117,238.44/161,767.74 = 65,556.47/x
  3. Step 3: Cross multiply
    117,238.44x = 161,767.74 × 65,556.47
  4. Step 4: Simplify right side
    117,238.44x = 10,604,921,994.28
  5. Step 5: Solve for x
    x = 10,604,921,994.28/117,238.44
  6. Step 6: Final answer
    x = 90,456.02

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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.