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Finding the Fourth Proportional to 116,073.20, 173,879.40 and 63,388.40

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Solution

The fourth proportional to 116,073.20, 173,879.40 and 63,388.40 is: 94,956.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,073.20 : 173,879.40 = 63,388.40 : x
  2. Step 2: Convert to fraction form
    116,073.20/173,879.40 = 63,388.40/x
  3. Step 3: Cross multiply
    116,073.20x = 173,879.40 × 63,388.40
  4. Step 4: Simplify right side
    116,073.20x = 11,021,936,958.96
  5. Step 5: Solve for x
    x = 11,021,936,958.96/116,073.20
  6. Step 6: Final answer
    x = 94,956.78

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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.