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Finding the Third Proportional to 66,131.12 and 99,346.18

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Solution

The third proportional to 66,131.12 and 99,346.18 is: 149,243.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.12 : 99,346.18 = 99,346.18 : x
  2. Step 2: Convert to fraction form
    66,131.12/99,346.18 = 99,346.18/x
  3. Step 3: Cross multiply
    66,131.12x = 99,346.18 × 99,346.18
  4. Step 4: Simplify right side
    66,131.12x = 9,869,664,194.64
  5. Step 5: Solve for x
    x = 9,869,664,194.64/66,131.12
  6. Step 6: Final answer
    x = 149,243.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.