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Finding the Fourth Proportional to 172,811.75, 259,178.67 and 62,003.75

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Solution

The fourth proportional to 172,811.75, 259,178.67 and 62,003.75 is: 92,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,811.75 : 259,178.67 = 62,003.75 : x
  2. Step 2: Convert to fraction form
    172,811.75/259,178.67 = 62,003.75/x
  3. Step 3: Cross multiply
    172,811.75x = 259,178.67 × 62,003.75
  4. Step 4: Simplify right side
    172,811.75x = 16,070,048,164.12
  5. Step 5: Solve for x
    x = 16,070,048,164.12/172,811.75
  6. Step 6: Final answer
    x = 92,991.64

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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.