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Finding the Fourth Proportional to 168,100.48, 252,169.16 and 83,881.83

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Solution

The fourth proportional to 168,100.48, 252,169.16 and 83,881.83 is: 125,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,100.48 : 252,169.16 = 83,881.83 : x
  2. Step 2: Convert to fraction form
    168,100.48/252,169.16 = 83,881.83/x
  3. Step 3: Cross multiply
    168,100.48x = 252,169.16 × 83,881.83
  4. Step 4: Simplify right side
    168,100.48x = 21,152,410,610.36
  5. Step 5: Solve for x
    x = 21,152,410,610.36/168,100.48
  6. Step 6: Final answer
    x = 125,831.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.