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Finding the Third Proportional to 166,416 and 359,072

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Solution

The third proportional to 166,416 and 359,072 is: 774,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,416 : 359,072 = 359,072 : x
  2. Step 2: Convert to fraction form
    166,416/359,072 = 359,072/x
  3. Step 3: Cross multiply
    166,416x = 359,072 × 359,072
  4. Step 4: Simplify right side
    166,416x = 128,932,701,184
  5. Step 5: Solve for x
    x = 128,932,701,184/166,416
  6. Step 6: Final answer
    x = 774,761.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.