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Finding the Fourth Proportional to 306,273.28, 459,373.36 and 81,650.56

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Solution

The fourth proportional to 306,273.28, 459,373.36 and 81,650.56 is: 122,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,273.28 : 459,373.36 = 81,650.56 : x
  2. Step 2: Convert to fraction form
    306,273.28/459,373.36 = 81,650.56/x
  3. Step 3: Cross multiply
    306,273.28x = 459,373.36 × 81,650.56
  4. Step 4: Simplify right side
    306,273.28x = 37,508,092,093.08
  5. Step 5: Solve for x
    x = 37,508,092,093.08/306,273.28
  6. Step 6: Final answer
    x = 122,466.09

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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.