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Finding the Fourth Proportional to 312,015.63, 467,599.34 and 131,951.37

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Solution

The fourth proportional to 312,015.63, 467,599.34 and 131,951.37 is: 197,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,015.63 : 467,599.34 = 131,951.37 : x
  2. Step 2: Convert to fraction form
    312,015.63/467,599.34 = 131,951.37/x
  3. Step 3: Cross multiply
    312,015.63x = 467,599.34 × 131,951.37
  4. Step 4: Simplify right side
    312,015.63x = 61,700,372,864.34
  5. Step 5: Solve for x
    x = 61,700,372,864.34/312,015.63
  6. Step 6: Final answer
    x = 197,747.70

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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.