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Finding the Third Proportional to 155,958.75 and 236,139.75

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Solution

The third proportional to 155,958.75 and 236,139.75 is: 357,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,958.75 : 236,139.75 = 236,139.75 : x
  2. Step 2: Convert to fraction form
    155,958.75/236,139.75 = 236,139.75/x
  3. Step 3: Cross multiply
    155,958.75x = 236,139.75 × 236,139.75
  4. Step 4: Simplify right side
    155,958.75x = 55,761,981,530.06
  5. Step 5: Solve for x
    x = 55,761,981,530.06/155,958.75
  6. Step 6: Final answer
    x = 357,543.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.