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Finding the Fourth Proportional to 323,804.58, 485,412.82 and 113,327.70

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Solution

The fourth proportional to 323,804.58, 485,412.82 and 113,327.70 is: 169,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,804.58 : 485,412.82 = 113,327.70 : x
  2. Step 2: Convert to fraction form
    323,804.58/485,412.82 = 113,327.70/x
  3. Step 3: Cross multiply
    323,804.58x = 485,412.82 × 113,327.70
  4. Step 4: Simplify right side
    323,804.58x = 55,010,718,441.11
  5. Step 5: Solve for x
    x = 55,010,718,441.11/323,804.58
  6. Step 6: Final answer
    x = 169,888.64

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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.