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Finding the Third Proportional to 108,355.50 and 161,385.75

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Solution

The third proportional to 108,355.50 and 161,385.75 is: 240,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,355.50 : 161,385.75 = 161,385.75 : x
  2. Step 2: Convert to fraction form
    108,355.50/161,385.75 = 161,385.75/x
  3. Step 3: Cross multiply
    108,355.50x = 161,385.75 × 161,385.75
  4. Step 4: Simplify right side
    108,355.50x = 26,045,360,303.06
  5. Step 5: Solve for x
    x = 26,045,360,303.06/108,355.50
  6. Step 6: Final answer
    x = 240,369.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.