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Finding the Third Proportional to 157,969.50 and 347,961

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Solution

The third proportional to 157,969.50 and 347,961 is: 766,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,969.50 : 347,961 = 347,961 : x
  2. Step 2: Convert to fraction form
    157,969.50/347,961 = 347,961/x
  3. Step 3: Cross multiply
    157,969.50x = 347,961 × 347,961
  4. Step 4: Simplify right side
    157,969.50x = 121,076,857,521
  5. Step 5: Solve for x
    x = 121,076,857,521/157,969.50
  6. Step 6: Final answer
    x = 766,457.18

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.