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Finding the Fourth Proportional to 325,568.70, 488,439.45 and 115,184.70

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Solution

The fourth proportional to 325,568.70, 488,439.45 and 115,184.70 is: 172,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,568.70 : 488,439.45 = 115,184.70 : x
  2. Step 2: Convert to fraction form
    325,568.70/488,439.45 = 115,184.70/x
  3. Step 3: Cross multiply
    325,568.70x = 488,439.45 × 115,184.70
  4. Step 4: Simplify right side
    325,568.70x = 56,260,751,516.42
  5. Step 5: Solve for x
    x = 56,260,751,516.42/325,568.70
  6. Step 6: Final answer
    x = 172,807.62

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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.