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Finding the Third Proportional to 158,739.75 and 328,434.75

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Solution

The third proportional to 158,739.75 and 328,434.75 is: 679,536.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,739.75 : 328,434.75 = 328,434.75 : x
  2. Step 2: Convert to fraction form
    158,739.75/328,434.75 = 328,434.75/x
  3. Step 3: Cross multiply
    158,739.75x = 328,434.75 × 328,434.75
  4. Step 4: Simplify right side
    158,739.75x = 107,869,385,007.56
  5. Step 5: Solve for x
    x = 107,869,385,007.56/158,739.75
  6. Step 6: Final answer
    x = 679,536.06

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.