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Finding the Third Proportional to 80,521.50 and 176,973

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Solution

The third proportional to 80,521.50 and 176,973 is: 388,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,521.50 : 176,973 = 176,973 : x
  2. Step 2: Convert to fraction form
    80,521.50/176,973 = 176,973/x
  3. Step 3: Cross multiply
    80,521.50x = 176,973 × 176,973
  4. Step 4: Simplify right side
    80,521.50x = 31,319,442,729
  5. Step 5: Solve for x
    x = 31,319,442,729/80,521.50
  6. Step 6: Final answer
    x = 388,957.52

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.