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Finding the Third Proportional to 156,925 and 348,721

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Solution

The third proportional to 156,925 and 348,721 is: 774,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,925 : 348,721 = 348,721 : x
  2. Step 2: Convert to fraction form
    156,925/348,721 = 348,721/x
  3. Step 3: Cross multiply
    156,925x = 348,721 × 348,721
  4. Step 4: Simplify right side
    156,925x = 121,606,335,841
  5. Step 5: Solve for x
    x = 121,606,335,841/156,925
  6. Step 6: Final answer
    x = 774,932.84

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.