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Finding the Third Proportional to 156,957 and 335,459

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Solution

The third proportional to 156,957 and 335,459 is: 716,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957 : 335,459 = 335,459 : x
  2. Step 2: Convert to fraction form
    156,957/335,459 = 335,459/x
  3. Step 3: Cross multiply
    156,957x = 335,459 × 335,459
  4. Step 4: Simplify right side
    156,957x = 112,532,740,681
  5. Step 5: Solve for x
    x = 112,532,740,681/156,957
  6. Step 6: Final answer
    x = 716,965.42

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.