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Finding the Fourth Proportional to 113,891.92, 170,858.58 and 56,995.54

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Solution

The fourth proportional to 113,891.92, 170,858.58 and 56,995.54 is: 85,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,891.92 : 170,858.58 = 56,995.54 : x
  2. Step 2: Convert to fraction form
    113,891.92/170,858.58 = 56,995.54/x
  3. Step 3: Cross multiply
    113,891.92x = 170,858.58 × 56,995.54
  4. Step 4: Simplify right side
    113,891.92x = 9,738,177,030.73
  5. Step 5: Solve for x
    x = 9,738,177,030.73/113,891.92
  6. Step 6: Final answer
    x = 85,503.67

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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.