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Finding the Fourth Proportional to 551,996.40, 827,994.60 and 178,057.20

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Solution

The fourth proportional to 551,996.40, 827,994.60 and 178,057.20 is: 267,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,996.40 : 827,994.60 = 178,057.20 : x
  2. Step 2: Convert to fraction form
    551,996.40/827,994.60 = 178,057.20/x
  3. Step 3: Cross multiply
    551,996.40x = 827,994.60 × 178,057.20
  4. Step 4: Simplify right side
    551,996.40x = 147,430,400,091.12
  5. Step 5: Solve for x
    x = 147,430,400,091.12/551,996.40
  6. Step 6: Final answer
    x = 267,085.80

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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.