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Finding the Fourth Proportional to 137,554.20, 206,331.30 and 113,934.60

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Solution

The fourth proportional to 137,554.20, 206,331.30 and 113,934.60 is: 170,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,554.20 : 206,331.30 = 113,934.60 : x
  2. Step 2: Convert to fraction form
    137,554.20/206,331.30 = 113,934.60/x
  3. Step 3: Cross multiply
    137,554.20x = 206,331.30 × 113,934.60
  4. Step 4: Simplify right side
    137,554.20x = 23,508,274,132.98
  5. Step 5: Solve for x
    x = 23,508,274,132.98/137,554.20
  6. Step 6: Final answer
    x = 170,901.90

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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.