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Finding the Fourth Proportional to 184,990.50, 255,286.89 and 100,108.17

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Solution

The fourth proportional to 184,990.50, 255,286.89 and 100,108.17 is: 138,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,990.50 : 255,286.89 = 100,108.17 : x
  2. Step 2: Convert to fraction form
    184,990.50/255,286.89 = 100,108.17/x
  3. Step 3: Cross multiply
    184,990.50x = 255,286.89 × 100,108.17
  4. Step 4: Simplify right side
    184,990.50x = 25,556,303,382.89
  5. Step 5: Solve for x
    x = 25,556,303,382.89/184,990.50
  6. Step 6: Final answer
    x = 138,149.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.