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Finding the Fourth Proportional to 188,506.20, 282,729.96 and 122,414.88

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Solution

The fourth proportional to 188,506.20, 282,729.96 and 122,414.88 is: 183,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.20 : 282,729.96 = 122,414.88 : x
  2. Step 2: Convert to fraction form
    188,506.20/282,729.96 = 122,414.88/x
  3. Step 3: Cross multiply
    188,506.20x = 282,729.96 × 122,414.88
  4. Step 4: Simplify right side
    188,506.20x = 34,610,354,125.80
  5. Step 5: Solve for x
    x = 34,610,354,125.80/188,506.20
  6. Step 6: Final answer
    x = 183,603.27

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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.