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Finding the Fourth Proportional to 100,892.52, 151,099.02 and 50,815.08

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Solution

The fourth proportional to 100,892.52, 151,099.02 and 50,815.08 is: 76,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,892.52 : 151,099.02 = 50,815.08 : x
  2. Step 2: Convert to fraction form
    100,892.52/151,099.02 = 50,815.08/x
  3. Step 3: Cross multiply
    100,892.52x = 151,099.02 × 50,815.08
  4. Step 4: Simplify right side
    100,892.52x = 7,678,108,789.22
  5. Step 5: Solve for x
    x = 7,678,108,789.22/100,892.52
  6. Step 6: Final answer
    x = 76,101.86

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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.