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Finding the Fourth Proportional to 316,984.70, 437,483.68 and 196,164.88

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Solution

The fourth proportional to 316,984.70, 437,483.68 and 196,164.88 is: 270,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,984.70 : 437,483.68 = 196,164.88 : x
  2. Step 2: Convert to fraction form
    316,984.70/437,483.68 = 196,164.88/x
  3. Step 3: Cross multiply
    316,984.70x = 437,483.68 × 196,164.88
  4. Step 4: Simplify right side
    316,984.70x = 85,818,933,589.16
  5. Step 5: Solve for x
    x = 85,818,933,589.16/316,984.70
  6. Step 6: Final answer
    x = 270,735.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.