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Finding the Fourth Proportional to 173,085.80, 259,601.70 and 54,786.20

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Solution

The fourth proportional to 173,085.80, 259,601.70 and 54,786.20 is: 82,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,085.80 : 259,601.70 = 54,786.20 : x
  2. Step 2: Convert to fraction form
    173,085.80/259,601.70 = 54,786.20/x
  3. Step 3: Cross multiply
    173,085.80x = 259,601.70 × 54,786.20
  4. Step 4: Simplify right side
    173,085.80x = 14,222,590,656.54
  5. Step 5: Solve for x
    x = 14,222,590,656.54/173,085.80
  6. Step 6: Final answer
    x = 82,170.75

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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.