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Finding the Fourth Proportional to 317,311.64, 437,857.62 and 189,983.96

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Solution

The fourth proportional to 317,311.64, 437,857.62 and 189,983.96 is: 262,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,311.64 : 437,857.62 = 189,983.96 : x
  2. Step 2: Convert to fraction form
    317,311.64/437,857.62 = 189,983.96/x
  3. Step 3: Cross multiply
    317,311.64x = 437,857.62 × 189,983.96
  4. Step 4: Simplify right side
    317,311.64x = 83,185,924,563.78
  5. Step 5: Solve for x
    x = 83,185,924,563.78/317,311.64
  6. Step 6: Final answer
    x = 262,158.44

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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.