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Finding the Third Proportional to 74,793.38 and 161,478

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Solution

The third proportional to 74,793.38 and 161,478 is: 348,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.38 : 161,478 = 161,478 : x
  2. Step 2: Convert to fraction form
    74,793.38/161,478 = 161,478/x
  3. Step 3: Cross multiply
    74,793.38x = 161,478 × 161,478
  4. Step 4: Simplify right side
    74,793.38x = 26,075,144,484
  5. Step 5: Solve for x
    x = 26,075,144,484/74,793.38
  6. Step 6: Final answer
    x = 348,629.07

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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.