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Finding the Fourth Proportional to 272,517.69, 376,076.88 and 151,664.07

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Solution

The fourth proportional to 272,517.69, 376,076.88 and 151,664.07 is: 209,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,517.69 : 376,076.88 = 151,664.07 : x
  2. Step 2: Convert to fraction form
    272,517.69/376,076.88 = 151,664.07/x
  3. Step 3: Cross multiply
    272,517.69x = 376,076.88 × 151,664.07
  4. Step 4: Simplify right side
    272,517.69x = 57,037,350,253.70
  5. Step 5: Solve for x
    x = 57,037,350,253.70/272,517.69
  6. Step 6: Final answer
    x = 209,297.79

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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.