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Finding the Fourth Proportional to 325,322.86, 488,007.09 and 100,653.70

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Solution

The fourth proportional to 325,322.86, 488,007.09 and 100,653.70 is: 150,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,322.86 : 488,007.09 = 100,653.70 : x
  2. Step 2: Convert to fraction form
    325,322.86/488,007.09 = 100,653.70/x
  3. Step 3: Cross multiply
    325,322.86x = 488,007.09 × 100,653.70
  4. Step 4: Simplify right side
    325,322.86x = 49,119,719,234.73
  5. Step 5: Solve for x
    x = 49,119,719,234.73/325,322.86
  6. Step 6: Final answer
    x = 150,987.60

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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.