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Finding the Fourth Proportional to 118,245.57, 177,363.35 and 55,043.97

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Solution

The fourth proportional to 118,245.57, 177,363.35 and 55,043.97 is: 82,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,245.57 : 177,363.35 = 55,043.97 : x
  2. Step 2: Convert to fraction form
    118,245.57/177,363.35 = 55,043.97/x
  3. Step 3: Cross multiply
    118,245.57x = 177,363.35 × 55,043.97
  4. Step 4: Simplify right side
    118,245.57x = 9,762,782,916.50
  5. Step 5: Solve for x
    x = 9,762,782,916.50/118,245.57
  6. Step 6: Final answer
    x = 82,563.63

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1.5x scale

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.