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Finding the Fourth Proportional to 137,375.60, 206,063.40 and 48,628.40

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Solution

The fourth proportional to 137,375.60, 206,063.40 and 48,628.40 is: 72,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,375.60 : 206,063.40 = 48,628.40 : x
  2. Step 2: Convert to fraction form
    137,375.60/206,063.40 = 48,628.40/x
  3. Step 3: Cross multiply
    137,375.60x = 206,063.40 × 48,628.40
  4. Step 4: Simplify right side
    137,375.60x = 10,020,533,440.56
  5. Step 5: Solve for x
    x = 10,020,533,440.56/137,375.60
  6. Step 6: Final answer
    x = 72,942.60

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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.