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Finding the Fourth Proportional to 275,151.60, 379,731.60 and 161,996.40

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Solution

The fourth proportional to 275,151.60, 379,731.60 and 161,996.40 is: 223,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,151.60 : 379,731.60 = 161,996.40 : x
  2. Step 2: Convert to fraction form
    275,151.60/379,731.60 = 161,996.40/x
  3. Step 3: Cross multiply
    275,151.60x = 379,731.60 × 161,996.40
  4. Step 4: Simplify right side
    275,151.60x = 61,515,152,166.24
  5. Step 5: Solve for x
    x = 61,515,152,166.24/275,151.60
  6. Step 6: Final answer
    x = 223,568.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.