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Finding the Fourth Proportional to 68,117.44, 102,181.28 and 18,196.44

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Solution

The fourth proportional to 68,117.44, 102,181.28 and 18,196.44 is: 27,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,117.44 : 102,181.28 = 18,196.44 : x
  2. Step 2: Convert to fraction form
    68,117.44/102,181.28 = 18,196.44/x
  3. Step 3: Cross multiply
    68,117.44x = 102,181.28 × 18,196.44
  4. Step 4: Simplify right side
    68,117.44x = 1,859,335,530.64
  5. Step 5: Solve for x
    x = 1,859,335,530.64/68,117.44
  6. Step 6: Final answer
    x = 27,296.03

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1.5x scale

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.