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Finding the Third Proportional to 153,015.75 and 328,174.50

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Solution

The third proportional to 153,015.75 and 328,174.50 is: 703,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,015.75 : 328,174.50 = 328,174.50 : x
  2. Step 2: Convert to fraction form
    153,015.75/328,174.50 = 328,174.50/x
  3. Step 3: Cross multiply
    153,015.75x = 328,174.50 × 328,174.50
  4. Step 4: Simplify right side
    153,015.75x = 107,698,502,450.25
  5. Step 5: Solve for x
    x = 107,698,502,450.25/153,015.75
  6. Step 6: Final answer
    x = 703,839.33

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.