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Finding the Fourth Proportional to 108,614.20, 162,791.70 and 45,434.20

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Solution

The fourth proportional to 108,614.20, 162,791.70 and 45,434.20 is: 68,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,614.20 : 162,791.70 = 45,434.20 : x
  2. Step 2: Convert to fraction form
    108,614.20/162,791.70 = 45,434.20/x
  3. Step 3: Cross multiply
    108,614.20x = 162,791.70 × 45,434.20
  4. Step 4: Simplify right side
    108,614.20x = 7,396,310,656.14
  5. Step 5: Solve for x
    x = 7,396,310,656.14/108,614.20
  6. Step 6: Final answer
    x = 68,097.09

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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.