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Finding the Fourth Proportional to 362,558.72, 543,651.27 and 162,707.78

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Solution

The fourth proportional to 362,558.72, 543,651.27 and 162,707.78 is: 243,977.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,558.72 : 543,651.27 = 162,707.78 : x
  2. Step 2: Convert to fraction form
    362,558.72/543,651.27 = 162,707.78/x
  3. Step 3: Cross multiply
    362,558.72x = 543,651.27 × 162,707.78
  4. Step 4: Simplify right side
    362,558.72x = 88,456,291,235.88
  5. Step 5: Solve for x
    x = 88,456,291,235.88/362,558.72
  6. Step 6: Final answer
    x = 243,977.83

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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.