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Finding the Fourth Proportional to 323,804.08, 485,412.08 and 113,327.20

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Solution

The fourth proportional to 323,804.08, 485,412.08 and 113,327.20 is: 169,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,804.08 : 485,412.08 = 113,327.20 : x
  2. Step 2: Convert to fraction form
    323,804.08/485,412.08 = 113,327.20/x
  3. Step 3: Cross multiply
    323,804.08x = 485,412.08 × 113,327.20
  4. Step 4: Simplify right side
    323,804.08x = 55,010,391,872.58
  5. Step 5: Solve for x
    x = 55,010,391,872.58/323,804.08
  6. Step 6: Final answer
    x = 169,887.89

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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.