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Finding the Fourth Proportional to 80,555.84, 110,891.04 and 69,882.56

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Solution

The fourth proportional to 80,555.84, 110,891.04 and 69,882.56 is: 96,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,555.84 : 110,891.04 = 69,882.56 : x
  2. Step 2: Convert to fraction form
    80,555.84/110,891.04 = 69,882.56/x
  3. Step 3: Cross multiply
    80,555.84x = 110,891.04 × 69,882.56
  4. Step 4: Simplify right side
    80,555.84x = 7,749,349,756.26
  5. Step 5: Solve for x
    x = 7,749,349,756.26/80,555.84
  6. Step 6: Final answer
    x = 96,198.48

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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.