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Finding the Fourth Proportional to 80,969.46, 111,680.01 and 70,195.07

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Solution

The fourth proportional to 80,969.46, 111,680.01 and 70,195.07 is: 96,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,969.46 : 111,680.01 = 70,195.07 : x
  2. Step 2: Convert to fraction form
    80,969.46/111,680.01 = 70,195.07/x
  3. Step 3: Cross multiply
    80,969.46x = 111,680.01 × 70,195.07
  4. Step 4: Simplify right side
    80,969.46x = 7,839,385,878.25
  5. Step 5: Solve for x
    x = 7,839,385,878.25/80,969.46
  6. Step 6: Final answer
    x = 96,819.05

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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.