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Finding the Fourth Proportional to 118,620.40, 177,930.60 and 48,483.31

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Solution

The fourth proportional to 118,620.40, 177,930.60 and 48,483.31 is: 72,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,620.40 : 177,930.60 = 48,483.31 : x
  2. Step 2: Convert to fraction form
    118,620.40/177,930.60 = 48,483.31/x
  3. Step 3: Cross multiply
    118,620.40x = 177,930.60 × 48,483.31
  4. Step 4: Simplify right side
    118,620.40x = 8,626,664,438.29
  5. Step 5: Solve for x
    x = 8,626,664,438.29/118,620.40
  6. Step 6: Final answer
    x = 72,724.97

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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.