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Finding the Third Proportional to 177,354.56 and 389,199.75

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Solution

The third proportional to 177,354.56 and 389,199.75 is: 854,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,354.56 : 389,199.75 = 389,199.75 : x
  2. Step 2: Convert to fraction form
    177,354.56/389,199.75 = 389,199.75/x
  3. Step 3: Cross multiply
    177,354.56x = 389,199.75 × 389,199.75
  4. Step 4: Simplify right side
    177,354.56x = 151,476,445,400.06
  5. Step 5: Solve for x
    x = 151,476,445,400.06/177,354.56
  6. Step 6: Final answer
    x = 854,088.24

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.