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Finding the Fourth Proportional to 362,157.48, 543,053.70 and 125,436.60

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Solution

The fourth proportional to 362,157.48, 543,053.70 and 125,436.60 is: 188,091.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,157.48 : 543,053.70 = 125,436.60 : x
  2. Step 2: Convert to fraction form
    362,157.48/543,053.70 = 125,436.60/x
  3. Step 3: Cross multiply
    362,157.48x = 543,053.70 × 125,436.60
  4. Step 4: Simplify right side
    362,157.48x = 68,118,809,745.42
  5. Step 5: Solve for x
    x = 68,118,809,745.42/362,157.48
  6. Step 6: Final answer
    x = 188,091.68

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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.