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Finding the Fourth Proportional to 188,224.78, 259,750.62 and 103,347.30

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Solution

The fourth proportional to 188,224.78, 259,750.62 and 103,347.30 is: 142,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,224.78 : 259,750.62 = 103,347.30 : x
  2. Step 2: Convert to fraction form
    188,224.78/259,750.62 = 103,347.30/x
  3. Step 3: Cross multiply
    188,224.78x = 259,750.62 × 103,347.30
  4. Step 4: Simplify right side
    188,224.78x = 26,844,525,250.33
  5. Step 5: Solve for x
    x = 26,844,525,250.33/188,224.78
  6. Step 6: Final answer
    x = 142,619.51

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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.