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Finding the Fourth Proportional to 111,383.30, 166,880.55 and 95,831.30

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Solution

The fourth proportional to 111,383.30, 166,880.55 and 95,831.30 is: 143,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,383.30 : 166,880.55 = 95,831.30 : x
  2. Step 2: Convert to fraction form
    111,383.30/166,880.55 = 95,831.30/x
  3. Step 3: Cross multiply
    111,383.30x = 166,880.55 × 95,831.30
  4. Step 4: Simplify right side
    111,383.30x = 15,992,380,051.22
  5. Step 5: Solve for x
    x = 15,992,380,051.22/111,383.30
  6. Step 6: Final answer
    x = 143,579.69

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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.