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Finding the Fourth Proportional to 225,093.15, 312,049.15 and 213,108.39

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Solution

The fourth proportional to 225,093.15, 312,049.15 and 213,108.39 is: 295,434.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,093.15 : 312,049.15 = 213,108.39 : x
  2. Step 2: Convert to fraction form
    225,093.15/312,049.15 = 213,108.39/x
  3. Step 3: Cross multiply
    225,093.15x = 312,049.15 × 213,108.39
  4. Step 4: Simplify right side
    225,093.15x = 66,500,291,424.60
  5. Step 5: Solve for x
    x = 66,500,291,424.60/225,093.15
  6. Step 6: Final answer
    x = 295,434.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.