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Finding the Fourth Proportional to 68,716.60, 96,281 and 68,716.60

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Solution

The fourth proportional to 68,716.60, 96,281 and 68,716.60 is: 96,281

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.60 : 96,281 = 68,716.60 : x
  2. Step 2: Convert to fraction form
    68,716.60/96,281 = 68,716.60/x
  3. Step 3: Cross multiply
    68,716.60x = 96,281 × 68,716.60
  4. Step 4: Simplify right side
    68,716.60x = 6,616,102,964.60
  5. Step 5: Solve for x
    x = 6,616,102,964.60/68,716.60
  6. Step 6: Final answer
    x = 96,281

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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.