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Finding the Fourth Proportional to 325,446.81, 488,202.33 and 112,186.65

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Solution

The fourth proportional to 325,446.81, 488,202.33 and 112,186.65 is: 168,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,446.81 : 488,202.33 = 112,186.65 : x
  2. Step 2: Convert to fraction form
    325,446.81/488,202.33 = 112,186.65/x
  3. Step 3: Cross multiply
    325,446.81x = 488,202.33 × 112,186.65
  4. Step 4: Simplify right side
    325,446.81x = 54,769,783,924.89
  5. Step 5: Solve for x
    x = 54,769,783,924.89/325,446.81
  6. Step 6: Final answer
    x = 168,291.05

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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.