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Finding the Fourth Proportional to 192,072.70, 288,001.05 and 73,747.90

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Solution

The fourth proportional to 192,072.70, 288,001.05 and 73,747.90 is: 110,580.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,072.70 : 288,001.05 = 73,747.90 : x
  2. Step 2: Convert to fraction form
    192,072.70/288,001.05 = 73,747.90/x
  3. Step 3: Cross multiply
    192,072.70x = 288,001.05 × 73,747.90
  4. Step 4: Simplify right side
    192,072.70x = 21,239,472,635.30
  5. Step 5: Solve for x
    x = 21,239,472,635.30/192,072.70
  6. Step 6: Final answer
    x = 110,580.38

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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.