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Finding the Fourth Proportional to 272,699.37, 409,076.99 and 104,361.30

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Solution

The fourth proportional to 272,699.37, 409,076.99 and 104,361.30 is: 156,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,699.37 : 409,076.99 = 104,361.30 : x
  2. Step 2: Convert to fraction form
    272,699.37/409,076.99 = 104,361.30/x
  3. Step 3: Cross multiply
    272,699.37x = 409,076.99 × 104,361.30
  4. Step 4: Simplify right side
    272,699.37x = 42,691,805,954.68
  5. Step 5: Solve for x
    x = 42,691,805,954.68/272,699.37
  6. Step 6: Final answer
    x = 156,552.64

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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.