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Finding the Third Proportional to 178,941.75 and 385,918.50

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Solution

The third proportional to 178,941.75 and 385,918.50 is: 832,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,941.75 : 385,918.50 = 385,918.50 : x
  2. Step 2: Convert to fraction form
    178,941.75/385,918.50 = 385,918.50/x
  3. Step 3: Cross multiply
    178,941.75x = 385,918.50 × 385,918.50
  4. Step 4: Simplify right side
    178,941.75x = 148,933,088,642.25
  5. Step 5: Solve for x
    x = 148,933,088,642.25/178,941.75
  6. Step 6: Final answer
    x = 832,299.27

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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.