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Finding the Fourth Proportional to 140,812.01, 209,961.97 and 125,164.01

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Solution

The fourth proportional to 140,812.01, 209,961.97 and 125,164.01 is: 186,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,812.01 : 209,961.97 = 125,164.01 : x
  2. Step 2: Convert to fraction form
    140,812.01/209,961.97 = 125,164.01/x
  3. Step 3: Cross multiply
    140,812.01x = 209,961.97 × 125,164.01
  4. Step 4: Simplify right side
    140,812.01x = 26,279,682,112.70
  5. Step 5: Solve for x
    x = 26,279,682,112.70/140,812.01
  6. Step 6: Final answer
    x = 186,629.55

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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.