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Finding the Third Proportional to 81,785.25 and 176,098.50

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Solution

The third proportional to 81,785.25 and 176,098.50 is: 379,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,785.25 : 176,098.50 = 176,098.50 : x
  2. Step 2: Convert to fraction form
    81,785.25/176,098.50 = 176,098.50/x
  3. Step 3: Cross multiply
    81,785.25x = 176,098.50 × 176,098.50
  4. Step 4: Simplify right side
    81,785.25x = 31,010,681,702.25
  5. Step 5: Solve for x
    x = 31,010,681,702.25/81,785.25
  6. Step 6: Final answer
    x = 379,172.06

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.