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Finding the Fourth Proportional to 76,125.60, 114,163.20 and 26,197.20

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Solution

The fourth proportional to 76,125.60, 114,163.20 and 26,197.20 is: 39,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,125.60 : 114,163.20 = 26,197.20 : x
  2. Step 2: Convert to fraction form
    76,125.60/114,163.20 = 26,197.20/x
  3. Step 3: Cross multiply
    76,125.60x = 114,163.20 × 26,197.20
  4. Step 4: Simplify right side
    76,125.60x = 2,990,756,183.04
  5. Step 5: Solve for x
    x = 2,990,756,183.04/76,125.60
  6. Step 6: Final answer
    x = 39,287.13

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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.