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Finding the Fourth Proportional to 191,929.38, 287,930.97 and 73,591.48

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Solution

The fourth proportional to 191,929.38, 287,930.97 and 73,591.48 is: 110,401.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.38 : 287,930.97 = 73,591.48 : x
  2. Step 2: Convert to fraction form
    191,929.38/287,930.97 = 73,591.48/x
  3. Step 3: Cross multiply
    191,929.38x = 287,930.97 × 73,591.48
  4. Step 4: Simplify right side
    191,929.38x = 21,189,266,220.14
  5. Step 5: Solve for x
    x = 21,189,266,220.14/191,929.38
  6. Step 6: Final answer
    x = 110,401.37

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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.