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Finding the Fourth Proportional to 168,587.20, 252,880.80 and 43,928.20

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Solution

The fourth proportional to 168,587.20, 252,880.80 and 43,928.20 is: 65,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,587.20 : 252,880.80 = 43,928.20 : x
  2. Step 2: Convert to fraction form
    168,587.20/252,880.80 = 43,928.20/x
  3. Step 3: Cross multiply
    168,587.20x = 252,880.80 × 43,928.20
  4. Step 4: Simplify right side
    168,587.20x = 11,108,598,358.56
  5. Step 5: Solve for x
    x = 11,108,598,358.56/168,587.20
  6. Step 6: Final answer
    x = 65,892.30

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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.