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Finding the Third Proportional to 75,928.50 and 163,539

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Solution

The third proportional to 75,928.50 and 163,539 is: 352,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,928.50 : 163,539 = 163,539 : x
  2. Step 2: Convert to fraction form
    75,928.50/163,539 = 163,539/x
  3. Step 3: Cross multiply
    75,928.50x = 163,539 × 163,539
  4. Step 4: Simplify right side
    75,928.50x = 26,745,004,521
  5. Step 5: Solve for x
    x = 26,745,004,521/75,928.50
  6. Step 6: Final answer
    x = 352,239.34

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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.