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Finding the Fourth Proportional to 113,616, 170,391.36 and 34,711.68

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Solution

The fourth proportional to 113,616, 170,391.36 and 34,711.68 is: 52,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,616 : 170,391.36 = 34,711.68 : x
  2. Step 2: Convert to fraction form
    113,616/170,391.36 = 34,711.68/x
  3. Step 3: Cross multiply
    113,616x = 170,391.36 × 34,711.68
  4. Step 4: Simplify right side
    113,616x = 5,914,570,363.08
  5. Step 5: Solve for x
    x = 5,914,570,363.08/113,616
  6. Step 6: Final answer
    x = 52,057.55

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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.