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Finding the Fourth Proportional to 325,691.80, 488,584.07 and 101,071.64

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Solution

The fourth proportional to 325,691.80, 488,584.07 and 101,071.64 is: 151,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,691.80 : 488,584.07 = 101,071.64 : x
  2. Step 2: Convert to fraction form
    325,691.80/488,584.07 = 101,071.64/x
  3. Step 3: Cross multiply
    325,691.80x = 488,584.07 × 101,071.64
  4. Step 4: Simplify right side
    325,691.80x = 49,381,993,232.77
  5. Step 5: Solve for x
    x = 49,381,993,232.77/325,691.80
  6. Step 6: Final answer
    x = 151,621.85

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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.