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Finding the Fourth Proportional to 388,507.88, 582,794.82 and 108,025.13

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Solution

The fourth proportional to 388,507.88, 582,794.82 and 108,025.13 is: 162,046.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,507.88 : 582,794.82 = 108,025.13 : x
  2. Step 2: Convert to fraction form
    388,507.88/582,794.82 = 108,025.13/x
  3. Step 3: Cross multiply
    388,507.88x = 582,794.82 × 108,025.13
  4. Step 4: Simplify right side
    388,507.88x = 62,956,483,279.85
  5. Step 5: Solve for x
    x = 62,956,483,279.85/388,507.88
  6. Step 6: Final answer
    x = 162,046.87

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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.