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Finding the Fourth Proportional to 215,951.63, 298,013.51 and 120,464.37

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Solution

The fourth proportional to 215,951.63, 298,013.51 and 120,464.37 is: 166,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,951.63 : 298,013.51 = 120,464.37 : x
  2. Step 2: Convert to fraction form
    215,951.63/298,013.51 = 120,464.37/x
  3. Step 3: Cross multiply
    215,951.63x = 298,013.51 × 120,464.37
  4. Step 4: Simplify right side
    215,951.63x = 35,900,010,034.80
  5. Step 5: Solve for x
    x = 35,900,010,034.80/215,951.63
  6. Step 6: Final answer
    x = 166,240.98

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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.