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Finding the Fourth Proportional to 447,969.60, 672,213.60 and 167,515.20

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Solution

The fourth proportional to 447,969.60, 672,213.60 and 167,515.20 is: 251,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,969.60 : 672,213.60 = 167,515.20 : x
  2. Step 2: Convert to fraction form
    447,969.60/672,213.60 = 167,515.20/x
  3. Step 3: Cross multiply
    447,969.60x = 672,213.60 × 167,515.20
  4. Step 4: Simplify right side
    447,969.60x = 112,605,995,646.72
  5. Step 5: Solve for x
    x = 112,605,995,646.72/447,969.60
  6. Step 6: Final answer
    x = 251,369.73

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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.