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Finding the Third Proportional to 169,776 and 361,248

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Solution

The third proportional to 169,776 and 361,248 is: 768,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,776 : 361,248 = 361,248 : x
  2. Step 2: Convert to fraction form
    169,776/361,248 = 361,248/x
  3. Step 3: Cross multiply
    169,776x = 361,248 × 361,248
  4. Step 4: Simplify right side
    169,776x = 130,500,117,504
  5. Step 5: Solve for x
    x = 130,500,117,504/169,776
  6. Step 6: Final answer
    x = 768,660.57

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.