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Finding the Third Proportional to 147,176 and 319,960

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Solution

The third proportional to 147,176 and 319,960 is: 695,591.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,176 : 319,960 = 319,960 : x
  2. Step 2: Convert to fraction form
    147,176/319,960 = 319,960/x
  3. Step 3: Cross multiply
    147,176x = 319,960 × 319,960
  4. Step 4: Simplify right side
    147,176x = 102,374,401,600
  5. Step 5: Solve for x
    x = 102,374,401,600/147,176
  6. Step 6: Final answer
    x = 695,591.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.