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Finding the Fourth Proportional to 80,950.64, 111,706.44 and 50,734.88

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Solution

The fourth proportional to 80,950.64, 111,706.44 and 50,734.88 is: 70,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,950.64 : 111,706.44 = 50,734.88 : x
  2. Step 2: Convert to fraction form
    80,950.64/111,706.44 = 50,734.88/x
  3. Step 3: Cross multiply
    80,950.64x = 111,706.44 × 50,734.88
  4. Step 4: Simplify right side
    80,950.64x = 5,667,412,828.63
  5. Step 5: Solve for x
    x = 5,667,412,828.63/80,950.64
  6. Step 6: Final answer
    x = 70,010.72

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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.