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Finding the Fourth Proportional to 137,645.56, 206,488.88 and 48,891.60

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Solution

The fourth proportional to 137,645.56, 206,488.88 and 48,891.60 is: 73,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,645.56 : 206,488.88 = 48,891.60 : x
  2. Step 2: Convert to fraction form
    137,645.56/206,488.88 = 48,891.60/x
  3. Step 3: Cross multiply
    137,645.56x = 206,488.88 × 48,891.60
  4. Step 4: Simplify right side
    137,645.56x = 10,095,571,725.41
  5. Step 5: Solve for x
    x = 10,095,571,725.41/137,645.56
  6. Step 6: Final answer
    x = 73,344.70

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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.