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Finding the Fourth Proportional to 362,255.30, 543,382.95 and 125,621.90

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Solution

The fourth proportional to 362,255.30, 543,382.95 and 125,621.90 is: 188,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,255.30 : 543,382.95 = 125,621.90 : x
  2. Step 2: Convert to fraction form
    362,255.30/543,382.95 = 125,621.90/x
  3. Step 3: Cross multiply
    362,255.30x = 543,382.95 × 125,621.90
  4. Step 4: Simplify right side
    362,255.30x = 68,260,798,606.61
  5. Step 5: Solve for x
    x = 68,260,798,606.61/362,255.30
  6. Step 6: Final answer
    x = 188,432.85

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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.