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Finding the Fourth Proportional to 275,372.68, 412,979.58 and 75,699.58

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Solution

The fourth proportional to 275,372.68, 412,979.58 and 75,699.58 is: 113,527.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,372.68 : 412,979.58 = 75,699.58 : x
  2. Step 2: Convert to fraction form
    275,372.68/412,979.58 = 75,699.58/x
  3. Step 3: Cross multiply
    275,372.68x = 412,979.58 × 75,699.58
  4. Step 4: Simplify right side
    275,372.68x = 31,262,380,754.58
  5. Step 5: Solve for x
    x = 31,262,380,754.58/275,372.68
  6. Step 6: Final answer
    x = 113,527.53

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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.