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Finding the Fourth Proportional to 317,174.17, 475,687.62 and 189,126.21

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Solution

The fourth proportional to 317,174.17, 475,687.62 and 189,126.21 is: 283,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,174.17 : 475,687.62 = 189,126.21 : x
  2. Step 2: Convert to fraction form
    317,174.17/475,687.62 = 189,126.21/x
  3. Step 3: Cross multiply
    317,174.17x = 475,687.62 × 189,126.21
  4. Step 4: Simplify right side
    317,174.17x = 89,964,996,714.52
  5. Step 5: Solve for x
    x = 89,964,996,714.52/317,174.17
  6. Step 6: Final answer
    x = 283,645.41

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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.