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Finding the Fourth Proportional to 365,619.62, 548,441.57 and 125,731.16

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Solution

The fourth proportional to 365,619.62, 548,441.57 and 125,731.16 is: 188,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,619.62 : 548,441.57 = 125,731.16 : x
  2. Step 2: Convert to fraction form
    365,619.62/548,441.57 = 125,731.16/x
  3. Step 3: Cross multiply
    365,619.62x = 548,441.57 × 125,731.16
  4. Step 4: Simplify right side
    365,619.62x = 68,956,193,474.11
  5. Step 5: Solve for x
    x = 68,956,193,474.11/365,619.62
  6. Step 6: Final answer
    x = 188,600.91

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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.