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Finding the Fourth Proportional to 220,086.14, 330,223.97 and 118,863.88

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Solution

The fourth proportional to 220,086.14, 330,223.97 and 118,863.88 is: 178,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,086.14 : 330,223.97 = 118,863.88 : x
  2. Step 2: Convert to fraction form
    220,086.14/330,223.97 = 118,863.88/x
  3. Step 3: Cross multiply
    220,086.14x = 330,223.97 × 118,863.88
  4. Step 4: Simplify right side
    220,086.14x = 39,251,701,814.80
  5. Step 5: Solve for x
    x = 39,251,701,814.80/220,086.14
  6. Step 6: Final answer
    x = 178,347.00

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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.