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Finding the Fourth Proportional to 113,640.62, 170,460.83 and 30,534.62

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Solution

The fourth proportional to 113,640.62, 170,460.83 and 30,534.62 is: 45,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,640.62 : 170,460.83 = 30,534.62 : x
  2. Step 2: Convert to fraction form
    113,640.62/170,460.83 = 30,534.62/x
  3. Step 3: Cross multiply
    113,640.62x = 170,460.83 × 30,534.62
  4. Step 4: Simplify right side
    113,640.62x = 5,204,955,892.97
  5. Step 5: Solve for x
    x = 5,204,955,892.97/113,640.62
  6. Step 6: Final answer
    x = 45,801.90

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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.