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Finding the Third Proportional to 178,918.88 and 385,860.75

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Solution

The third proportional to 178,918.88 and 385,860.75 is: 832,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,918.88 : 385,860.75 = 385,860.75 : x
  2. Step 2: Convert to fraction form
    178,918.88/385,860.75 = 385,860.75/x
  3. Step 3: Cross multiply
    178,918.88x = 385,860.75 × 385,860.75
  4. Step 4: Simplify right side
    178,918.88x = 148,888,518,390.56
  5. Step 5: Solve for x
    x = 148,888,518,390.56/178,918.88
  6. Step 6: Final answer
    x = 832,156.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.