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Finding the Fourth Proportional to 362,372.72, 543,423 and 125,658.32

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Solution

The fourth proportional to 362,372.72, 543,423 and 125,658.32 is: 188,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,372.72 : 543,423 = 125,658.32 : x
  2. Step 2: Convert to fraction form
    362,372.72/543,423 = 125,658.32/x
  3. Step 3: Cross multiply
    362,372.72x = 543,423 × 125,658.32
  4. Step 4: Simplify right side
    362,372.72x = 68,285,621,229.36
  5. Step 5: Solve for x
    x = 68,285,621,229.36/362,372.72
  6. Step 6: Final answer
    x = 188,440.29

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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.