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Finding the Third Proportional to 72,356.25 and 103,212.75

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Solution

The third proportional to 72,356.25 and 103,212.75 is: 147,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,356.25 : 103,212.75 = 103,212.75 : x
  2. Step 2: Convert to fraction form
    72,356.25/103,212.75 = 103,212.75/x
  3. Step 3: Cross multiply
    72,356.25x = 103,212.75 × 103,212.75
  4. Step 4: Simplify right side
    72,356.25x = 10,652,871,762.56
  5. Step 5: Solve for x
    x = 10,652,871,762.56/72,356.25
  6. Step 6: Final answer
    x = 147,228.08

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.