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Finding the Fourth Proportional to 168,473.20, 252,709.80 and 43,814.20

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Solution

The fourth proportional to 168,473.20, 252,709.80 and 43,814.20 is: 65,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,473.20 : 252,709.80 = 43,814.20 : x
  2. Step 2: Convert to fraction form
    168,473.20/252,709.80 = 43,814.20/x
  3. Step 3: Cross multiply
    168,473.20x = 252,709.80 × 43,814.20
  4. Step 4: Simplify right side
    168,473.20x = 11,072,277,719.16
  5. Step 5: Solve for x
    x = 11,072,277,719.16/168,473.20
  6. Step 6: Final answer
    x = 65,721.30

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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.