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Finding the Fourth Proportional to 172,857.75, 259,330.37 and 48,198.75

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Solution

The fourth proportional to 172,857.75, 259,330.37 and 48,198.75 is: 72,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,857.75 : 259,330.37 = 48,198.75 : x
  2. Step 2: Convert to fraction form
    172,857.75/259,330.37 = 48,198.75/x
  3. Step 3: Cross multiply
    172,857.75x = 259,330.37 × 48,198.75
  4. Step 4: Simplify right side
    172,857.75x = 12,499,399,430.04
  5. Step 5: Solve for x
    x = 12,499,399,430.04/172,857.75
  6. Step 6: Final answer
    x = 72,310.32

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1.5x scale

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.