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Finding the Fourth Proportional to 113,896.80, 170,845.20 and 108,453.60

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Solution

The fourth proportional to 113,896.80, 170,845.20 and 108,453.60 is: 162,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,896.80 : 170,845.20 = 108,453.60 : x
  2. Step 2: Convert to fraction form
    113,896.80/170,845.20 = 108,453.60/x
  3. Step 3: Cross multiply
    113,896.80x = 170,845.20 × 108,453.60
  4. Step 4: Simplify right side
    113,896.80x = 18,528,776,982.72
  5. Step 5: Solve for x
    x = 18,528,776,982.72/113,896.80
  6. Step 6: Final answer
    x = 162,680.40

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1.5x scale

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.