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Finding the Fourth Proportional to 173,074.80, 259,656.03 and 53,137.87

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Solution

The fourth proportional to 173,074.80, 259,656.03 and 53,137.87 is: 79,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,074.80 : 259,656.03 = 53,137.87 : x
  2. Step 2: Convert to fraction form
    173,074.80/259,656.03 = 53,137.87/x
  3. Step 3: Cross multiply
    173,074.80x = 259,656.03 × 53,137.87
  4. Step 4: Simplify right side
    173,074.80x = 13,797,568,366.86
  5. Step 5: Solve for x
    x = 13,797,568,366.86/173,074.80
  6. Step 6: Final answer
    x = 79,720.26

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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.