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Finding the Fourth Proportional to 68,862.20, 96,538.30 and 68,862.20

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Solution

The fourth proportional to 68,862.20, 96,538.30 and 68,862.20 is: 96,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.20 : 96,538.30 = 68,862.20 : x
  2. Step 2: Convert to fraction form
    68,862.20/96,538.30 = 68,862.20/x
  3. Step 3: Cross multiply
    68,862.20x = 96,538.30 × 68,862.20
  4. Step 4: Simplify right side
    68,862.20x = 6,647,839,722.26
  5. Step 5: Solve for x
    x = 6,647,839,722.26/68,862.20
  6. Step 6: Final answer
    x = 96,538.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.