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Finding the Fourth Proportional to 272,481.36, 376,015.44 and 151,619.28

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Solution

The fourth proportional to 272,481.36, 376,015.44 and 151,619.28 is: 209,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,481.36 : 376,015.44 = 151,619.28 : x
  2. Step 2: Convert to fraction form
    272,481.36/376,015.44 = 151,619.28/x
  3. Step 3: Cross multiply
    272,481.36x = 376,015.44 × 151,619.28
  4. Step 4: Simplify right side
    272,481.36x = 57,011,190,281.68
  5. Step 5: Solve for x
    x = 57,011,190,281.68/272,481.36
  6. Step 6: Final answer
    x = 209,229.69

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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.