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Finding the Third Proportional to 66,725 and 103,914.50

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Solution

The third proportional to 66,725 and 103,914.50 is: 161,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725 : 103,914.50 = 103,914.50 : x
  2. Step 2: Convert to fraction form
    66,725/103,914.50 = 103,914.50/x
  3. Step 3: Cross multiply
    66,725x = 103,914.50 × 103,914.50
  4. Step 4: Simplify right side
    66,725x = 10,798,223,310.25
  5. Step 5: Solve for x
    x = 10,798,223,310.25/66,725
  6. Step 6: Final answer
    x = 161,831.75

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.