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Finding the Fourth Proportional to 115,112.85, 171,892.48 and 94,093.95

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Solution

The fourth proportional to 115,112.85, 171,892.48 and 94,093.95 is: 140,505.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,112.85 : 171,892.48 = 94,093.95 : x
  2. Step 2: Convert to fraction form
    115,112.85/171,892.48 = 94,093.95/x
  3. Step 3: Cross multiply
    115,112.85x = 171,892.48 × 94,093.95
  4. Step 4: Simplify right side
    115,112.85x = 16,174,042,418.50
  5. Step 5: Solve for x
    x = 16,174,042,418.50/115,112.85
  6. Step 6: Final answer
    x = 140,505.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.