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Finding the Fourth Proportional to 195,491.97, 269,807.94 and 123,878.70

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Solution

The fourth proportional to 195,491.97, 269,807.94 and 123,878.70 is: 170,971.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,491.97 : 269,807.94 = 123,878.70 : x
  2. Step 2: Convert to fraction form
    195,491.97/269,807.94 = 123,878.70/x
  3. Step 3: Cross multiply
    195,491.97x = 269,807.94 × 123,878.70
  4. Step 4: Simplify right side
    195,491.97x = 33,423,456,856.88
  5. Step 5: Solve for x
    x = 33,423,456,856.88/195,491.97
  6. Step 6: Final answer
    x = 170,971.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.