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Finding the Fourth Proportional to 325,296.64, 488,084.51 and 125,757.15

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Solution

The fourth proportional to 325,296.64, 488,084.51 and 125,757.15 is: 188,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,296.64 : 488,084.51 = 125,757.15 : x
  2. Step 2: Convert to fraction form
    325,296.64/488,084.51 = 125,757.15/x
  3. Step 3: Cross multiply
    325,296.64x = 488,084.51 × 125,757.15
  4. Step 4: Simplify right side
    325,296.64x = 61,380,116,439.87
  5. Step 5: Solve for x
    x = 61,380,116,439.87/325,296.64
  6. Step 6: Final answer
    x = 188,689.67

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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.