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Finding the Fourth Proportional to 323,666.08, 485,568.48 and 113,310.88

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Solution

The fourth proportional to 323,666.08, 485,568.48 and 113,310.88 is: 169,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,666.08 : 485,568.48 = 113,310.88 : x
  2. Step 2: Convert to fraction form
    323,666.08/485,568.48 = 113,310.88/x
  3. Step 3: Cross multiply
    323,666.08x = 485,568.48 × 113,310.88
  4. Step 4: Simplify right side
    323,666.08x = 55,020,191,769.06
  5. Step 5: Solve for x
    x = 55,020,191,769.06/323,666.08
  6. Step 6: Final answer
    x = 169,990.60

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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.