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Finding the Fourth Proportional to 68,655.40, 102,906.30 and 35,362.60

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Solution

The fourth proportional to 68,655.40, 102,906.30 and 35,362.60 is: 53,004.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,655.40 : 102,906.30 = 35,362.60 : x
  2. Step 2: Convert to fraction form
    68,655.40/102,906.30 = 35,362.60/x
  3. Step 3: Cross multiply
    68,655.40x = 102,906.30 × 35,362.60
  4. Step 4: Simplify right side
    68,655.40x = 3,639,034,324.38
  5. Step 5: Solve for x
    x = 3,639,034,324.38/68,655.40
  6. Step 6: Final answer
    x = 53,004.34

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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.