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Finding the Fourth Proportional to 275,359.76, 412,994.28 and 88,346.96

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Solution

The fourth proportional to 275,359.76, 412,994.28 and 88,346.96 is: 132,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,359.76 : 412,994.28 = 88,346.96 : x
  2. Step 2: Convert to fraction form
    275,359.76/412,994.28 = 88,346.96/x
  3. Step 3: Cross multiply
    275,359.76x = 412,994.28 × 88,346.96
  4. Step 4: Simplify right side
    275,359.76x = 36,486,789,135.39
  5. Step 5: Solve for x
    x = 36,486,789,135.39/275,359.76
  6. Step 6: Final answer
    x = 132,505.89

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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.