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Finding the Fourth Proportional to 115,404.87, 173,126.75 and 53,073.75

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Solution

The fourth proportional to 115,404.87, 173,126.75 and 53,073.75 is: 79,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,404.87 : 173,126.75 = 53,073.75 : x
  2. Step 2: Convert to fraction form
    115,404.87/173,126.75 = 53,073.75/x
  3. Step 3: Cross multiply
    115,404.87x = 173,126.75 × 53,073.75
  4. Step 4: Simplify right side
    115,404.87x = 9,188,485,582.44
  5. Step 5: Solve for x
    x = 9,188,485,582.44/115,404.87
  6. Step 6: Final answer
    x = 79,619.57

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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.