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Finding the Fourth Proportional to 132,245, 182,514.74 and 81,951.56

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Solution

The fourth proportional to 132,245, 182,514.74 and 81,951.56 is: 113,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,245 : 182,514.74 = 81,951.56 : x
  2. Step 2: Convert to fraction form
    132,245/182,514.74 = 81,951.56/x
  3. Step 3: Cross multiply
    132,245x = 182,514.74 × 81,951.56
  4. Step 4: Simplify right side
    132,245x = 14,957,367,665.99
  5. Step 5: Solve for x
    x = 14,957,367,665.99/132,245
  6. Step 6: Final answer
    x = 113,103.46

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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.