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Finding the Fourth Proportional to 168,991.60, 253,487.40 and 113,004.40

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Solution

The fourth proportional to 168,991.60, 253,487.40 and 113,004.40 is: 169,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,991.60 : 253,487.40 = 113,004.40 : x
  2. Step 2: Convert to fraction form
    168,991.60/253,487.40 = 113,004.40/x
  3. Step 3: Cross multiply
    168,991.60x = 253,487.40 × 113,004.40
  4. Step 4: Simplify right side
    168,991.60x = 28,645,191,544.56
  5. Step 5: Solve for x
    x = 28,645,191,544.56/168,991.60
  6. Step 6: Final answer
    x = 169,506.60

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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.