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Finding the Fourth Proportional to 239,958.84, 359,957.39 and 82,188.66

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Solution

The fourth proportional to 239,958.84, 359,957.39 and 82,188.66 is: 123,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,958.84 : 359,957.39 = 82,188.66 : x
  2. Step 2: Convert to fraction form
    239,958.84/359,957.39 = 82,188.66/x
  3. Step 3: Cross multiply
    239,958.84x = 359,957.39 × 82,188.66
  4. Step 4: Simplify right side
    239,958.84x = 29,584,415,130.25
  5. Step 5: Solve for x
    x = 29,584,415,130.25/239,958.84
  6. Step 6: Final answer
    x = 123,289.54

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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.