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Finding the Fourth Proportional to 76,163.60, 114,220.20 and 26,235.20

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Solution

The fourth proportional to 76,163.60, 114,220.20 and 26,235.20 is: 39,344.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,163.60 : 114,220.20 = 26,235.20 : x
  2. Step 2: Convert to fraction form
    76,163.60/114,220.20 = 26,235.20/x
  3. Step 3: Cross multiply
    76,163.60x = 114,220.20 × 26,235.20
  4. Step 4: Simplify right side
    76,163.60x = 2,996,589,791.04
  5. Step 5: Solve for x
    x = 2,996,589,791.04/76,163.60
  6. Step 6: Final answer
    x = 39,344.12

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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.