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Finding the Fourth Proportional to 115,552.71, 173,201.85 and 75,555.20

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Solution

The fourth proportional to 115,552.71, 173,201.85 and 75,555.20 is: 113,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,552.71 : 173,201.85 = 75,555.20 : x
  2. Step 2: Convert to fraction form
    115,552.71/173,201.85 = 75,555.20/x
  3. Step 3: Cross multiply
    115,552.71x = 173,201.85 × 75,555.20
  4. Step 4: Simplify right side
    115,552.71x = 13,086,300,850.12
  5. Step 5: Solve for x
    x = 13,086,300,850.12/115,552.71
  6. Step 6: Final answer
    x = 113,249.62

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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.