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Finding the Fourth Proportional to 128,422.33, 192,633.49 and 44,184.56

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Solution

The fourth proportional to 128,422.33, 192,633.49 and 44,184.56 is: 66,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,422.33 : 192,633.49 = 44,184.56 : x
  2. Step 2: Convert to fraction form
    128,422.33/192,633.49 = 44,184.56/x
  3. Step 3: Cross multiply
    128,422.33x = 192,633.49 × 44,184.56
  4. Step 4: Simplify right side
    128,422.33x = 8,511,425,088.98
  5. Step 5: Solve for x
    x = 8,511,425,088.98/128,422.33
  6. Step 6: Final answer
    x = 66,276.83

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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.