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Finding the Fourth Proportional to 68,617.80, 102,926.70 and 63,952.20

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Solution

The fourth proportional to 68,617.80, 102,926.70 and 63,952.20 is: 95,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.80 : 102,926.70 = 63,952.20 : x
  2. Step 2: Convert to fraction form
    68,617.80/102,926.70 = 63,952.20/x
  3. Step 3: Cross multiply
    68,617.80x = 102,926.70 × 63,952.20
  4. Step 4: Simplify right side
    68,617.80x = 6,582,388,903.74
  5. Step 5: Solve for x
    x = 6,582,388,903.74/68,617.80
  6. Step 6: Final answer
    x = 95,928.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.