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Finding the Fourth Proportional to 275,903.07, 413,850.50 and 76,219.03

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Solution

The fourth proportional to 275,903.07, 413,850.50 and 76,219.03 is: 114,327.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,903.07 : 413,850.50 = 76,219.03 : x
  2. Step 2: Convert to fraction form
    275,903.07/413,850.50 = 76,219.03/x
  3. Step 3: Cross multiply
    275,903.07x = 413,850.50 × 76,219.03
  4. Step 4: Simplify right side
    275,903.07x = 31,543,283,675.02
  5. Step 5: Solve for x
    x = 31,543,283,675.02/275,903.07
  6. Step 6: Final answer
    x = 114,327.41

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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.