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Finding the Fourth Proportional to 68,345.30, 102,583.56 and 33,309.56

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Solution

The fourth proportional to 68,345.30, 102,583.56 and 33,309.56 is: 49,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,345.30 : 102,583.56 = 33,309.56 : x
  2. Step 2: Convert to fraction form
    68,345.30/102,583.56 = 33,309.56/x
  3. Step 3: Cross multiply
    68,345.30x = 102,583.56 × 33,309.56
  4. Step 4: Simplify right side
    68,345.30x = 3,417,013,628.20
  5. Step 5: Solve for x
    x = 3,417,013,628.20/68,345.30
  6. Step 6: Final answer
    x = 49,996.32

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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.