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Finding the Fourth Proportional to 325,378.64, 488,207.61 and 125,839.04

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Solution

The fourth proportional to 325,378.64, 488,207.61 and 125,839.04 is: 188,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,378.64 : 488,207.61 = 125,839.04 : x
  2. Step 2: Convert to fraction form
    325,378.64/488,207.61 = 125,839.04/x
  3. Step 3: Cross multiply
    325,378.64x = 488,207.61 × 125,839.04
  4. Step 4: Simplify right side
    325,378.64x = 61,435,573,892.86
  5. Step 5: Solve for x
    x = 61,435,573,892.86/325,378.64
  6. Step 6: Final answer
    x = 188,812.56

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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.