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Finding the Third Proportional to 74,722.50 and 161,655.75

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Solution

The third proportional to 74,722.50 and 161,655.75 is: 349,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.50 : 161,655.75 = 161,655.75 : x
  2. Step 2: Convert to fraction form
    74,722.50/161,655.75 = 161,655.75/x
  3. Step 3: Cross multiply
    74,722.50x = 161,655.75 × 161,655.75
  4. Step 4: Simplify right side
    74,722.50x = 26,132,581,508.06
  5. Step 5: Solve for x
    x = 26,132,581,508.06/74,722.50
  6. Step 6: Final answer
    x = 349,728.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.