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Finding the Fourth Proportional to 195,383.88, 269,501.52 and 155,033.64

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Solution

The fourth proportional to 195,383.88, 269,501.52 and 155,033.64 is: 213,844.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,383.88 : 269,501.52 = 155,033.64 : x
  2. Step 2: Convert to fraction form
    195,383.88/269,501.52 = 155,033.64/x
  3. Step 3: Cross multiply
    195,383.88x = 269,501.52 × 155,033.64
  4. Step 4: Simplify right side
    195,383.88x = 41,781,801,631.13
  5. Step 5: Solve for x
    x = 41,781,801,631.13/195,383.88
  6. Step 6: Final answer
    x = 213,844.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.