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Finding the Fourth Proportional to 168,656.40, 252,984.60 and 43,997.40

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Solution

The fourth proportional to 168,656.40, 252,984.60 and 43,997.40 is: 65,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,656.40 : 252,984.60 = 43,997.40 : x
  2. Step 2: Convert to fraction form
    168,656.40/252,984.60 = 43,997.40/x
  3. Step 3: Cross multiply
    168,656.40x = 252,984.60 × 43,997.40
  4. Step 4: Simplify right side
    168,656.40x = 11,130,664,640.04
  5. Step 5: Solve for x
    x = 11,130,664,640.04/168,656.40
  6. Step 6: Final answer
    x = 65,996.10

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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.