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Finding the Third Proportional to 147,712 and 322,500

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Solution

The third proportional to 147,712 and 322,500 is: 704,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,712 : 322,500 = 322,500 : x
  2. Step 2: Convert to fraction form
    147,712/322,500 = 322,500/x
  3. Step 3: Cross multiply
    147,712x = 322,500 × 322,500
  4. Step 4: Simplify right side
    147,712x = 104,006,250,000
  5. Step 5: Solve for x
    x = 104,006,250,000/147,712
  6. Step 6: Final answer
    x = 704,115.10

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.