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Finding the Fourth Proportional to 362,218.60, 543,400.80 and 125,512.30

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Solution

The fourth proportional to 362,218.60, 543,400.80 and 125,512.30 is: 188,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,218.60 : 543,400.80 = 125,512.30 : x
  2. Step 2: Convert to fraction form
    362,218.60/543,400.80 = 125,512.30/x
  3. Step 3: Cross multiply
    362,218.60x = 543,400.80 × 125,512.30
  4. Step 4: Simplify right side
    362,218.60x = 68,203,484,229.84
  5. Step 5: Solve for x
    x = 68,203,484,229.84/362,218.60
  6. Step 6: Final answer
    x = 188,293.71

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1.5x scale

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.