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Finding the Fourth Proportional to 82,617.84, 123,602.36 and 63,755.37

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Solution

The fourth proportional to 82,617.84, 123,602.36 and 63,755.37 is: 95,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,617.84 : 123,602.36 = 63,755.37 : x
  2. Step 2: Convert to fraction form
    82,617.84/123,602.36 = 63,755.37/x
  3. Step 3: Cross multiply
    82,617.84x = 123,602.36 × 63,755.37
  4. Step 4: Simplify right side
    82,617.84x = 7,880,313,875.90
  5. Step 5: Solve for x
    x = 7,880,313,875.90/82,617.84
  6. Step 6: Final answer
    x = 95,382.71

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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.