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Finding the Fourth Proportional to 331,861.86, 457,969.68 and 180,958.86

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Solution

The fourth proportional to 331,861.86, 457,969.68 and 180,958.86 is: 249,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,861.86 : 457,969.68 = 180,958.86 : x
  2. Step 2: Convert to fraction form
    331,861.86/457,969.68 = 180,958.86/x
  3. Step 3: Cross multiply
    331,861.86x = 457,969.68 × 180,958.86
  4. Step 4: Simplify right side
    331,861.86x = 82,873,671,207.36
  5. Step 5: Solve for x
    x = 82,873,671,207.36/331,861.86
  6. Step 6: Final answer
    x = 249,723.40

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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.