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Finding the Third Proportional to 93,984 and 129,072

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Solution

The third proportional to 93,984 and 129,072 is: 177,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,984 : 129,072 = 129,072 : x
  2. Step 2: Convert to fraction form
    93,984/129,072 = 129,072/x
  3. Step 3: Cross multiply
    93,984x = 129,072 × 129,072
  4. Step 4: Simplify right side
    93,984x = 16,659,581,184
  5. Step 5: Solve for x
    x = 16,659,581,184/93,984
  6. Step 6: Final answer
    x = 177,259.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.