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Finding the Third Proportional to 79,332 and 107,688

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Solution

The third proportional to 79,332 and 107,688 is: 146,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,332 : 107,688 = 107,688 : x
  2. Step 2: Convert to fraction form
    79,332/107,688 = 107,688/x
  3. Step 3: Cross multiply
    79,332x = 107,688 × 107,688
  4. Step 4: Simplify right side
    79,332x = 11,596,705,344
  5. Step 5: Solve for x
    x = 11,596,705,344/79,332
  6. Step 6: Final answer
    x = 146,179.41

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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.