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Finding the Fourth Proportional to 323,667.08, 485,569.98 and 113,311.88

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Solution

The fourth proportional to 323,667.08, 485,569.98 and 113,311.88 is: 169,992.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,667.08 : 485,569.98 = 113,311.88 : x
  2. Step 2: Convert to fraction form
    323,667.08/485,569.98 = 113,311.88/x
  3. Step 3: Cross multiply
    323,667.08x = 485,569.98 × 113,311.88
  4. Step 4: Simplify right side
    323,667.08x = 55,020,847,305.36
  5. Step 5: Solve for x
    x = 55,020,847,305.36/323,667.08
  6. Step 6: Final answer
    x = 169,992.10

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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.