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Finding the Fourth Proportional to 113,640.95, 170,434.08 and 34,755.86

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Solution

The fourth proportional to 113,640.95, 170,434.08 and 34,755.86 is: 52,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,640.95 : 170,434.08 = 34,755.86 : x
  2. Step 2: Convert to fraction form
    113,640.95/170,434.08 = 34,755.86/x
  3. Step 3: Cross multiply
    113,640.95x = 170,434.08 × 34,755.86
  4. Step 4: Simplify right side
    113,640.95x = 5,923,582,588.85
  5. Step 5: Solve for x
    x = 5,923,582,588.85/113,640.95
  6. Step 6: Final answer
    x = 52,125.42

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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.