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Finding the Third Proportional to 72,536 and 106,320

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Solution

The third proportional to 72,536 and 106,320 is: 155,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,536 : 106,320 = 106,320 : x
  2. Step 2: Convert to fraction form
    72,536/106,320 = 106,320/x
  3. Step 3: Cross multiply
    72,536x = 106,320 × 106,320
  4. Step 4: Simplify right side
    72,536x = 11,303,942,400
  5. Step 5: Solve for x
    x = 11,303,942,400/72,536
  6. Step 6: Final answer
    x = 155,839.06

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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.