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Finding the Third Proportional to 85,668.75 and 125,581.50

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Solution

The third proportional to 85,668.75 and 125,581.50 is: 184,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,668.75 : 125,581.50 = 125,581.50 : x
  2. Step 2: Convert to fraction form
    85,668.75/125,581.50 = 125,581.50/x
  3. Step 3: Cross multiply
    85,668.75x = 125,581.50 × 125,581.50
  4. Step 4: Simplify right side
    85,668.75x = 15,770,713,142.25
  5. Step 5: Solve for x
    x = 15,770,713,142.25/85,668.75
  6. Step 6: Final answer
    x = 184,089.45

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.