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Finding the Fourth Proportional to 151,607.69, 227,460.74 and 72,728.09

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Solution

The fourth proportional to 151,607.69, 227,460.74 and 72,728.09 is: 109,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,607.69 : 227,460.74 = 72,728.09 : x
  2. Step 2: Convert to fraction form
    151,607.69/227,460.74 = 72,728.09/x
  3. Step 3: Cross multiply
    151,607.69x = 227,460.74 × 72,728.09
  4. Step 4: Simplify right side
    151,607.69x = 16,542,783,669.24
  5. Step 5: Solve for x
    x = 16,542,783,669.24/151,607.69
  6. Step 6: Final answer
    x = 109,115.73

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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.