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Finding the Third Proportional to 161,451 and 248,989.50

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Solution

The third proportional to 161,451 and 248,989.50 is: 383,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,451 : 248,989.50 = 248,989.50 : x
  2. Step 2: Convert to fraction form
    161,451/248,989.50 = 248,989.50/x
  3. Step 3: Cross multiply
    161,451x = 248,989.50 × 248,989.50
  4. Step 4: Simplify right side
    161,451x = 61,995,771,110.25
  5. Step 5: Solve for x
    x = 61,995,771,110.25/161,451
  6. Step 6: Final answer
    x = 383,991.25

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.