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Finding the Fourth Proportional to 70,821.97, 97,523.39 and 69,250.30

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Solution

The fourth proportional to 70,821.97, 97,523.39 and 69,250.30 is: 95,359.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.97 : 97,523.39 = 69,250.30 : x
  2. Step 2: Convert to fraction form
    70,821.97/97,523.39 = 69,250.30/x
  3. Step 3: Cross multiply
    70,821.97x = 97,523.39 × 69,250.30
  4. Step 4: Simplify right side
    70,821.97x = 6,753,523,180.65
  5. Step 5: Solve for x
    x = 6,753,523,180.65/70,821.97
  6. Step 6: Final answer
    x = 95,359.16

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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.