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Finding the Third Proportional to 78,232 and 106,288

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Solution

The third proportional to 78,232 and 106,288 is: 144,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,232 : 106,288 = 106,288 : x
  2. Step 2: Convert to fraction form
    78,232/106,288 = 106,288/x
  3. Step 3: Cross multiply
    78,232x = 106,288 × 106,288
  4. Step 4: Simplify right side
    78,232x = 11,297,138,944
  5. Step 5: Solve for x
    x = 11,297,138,944/78,232
  6. Step 6: Final answer
    x = 144,405.60

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.