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Finding the Fourth Proportional to 362,409.80, 543,614.52 and 113,091.80

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Solution

The fourth proportional to 362,409.80, 543,614.52 and 113,091.80 is: 169,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,409.80 : 543,614.52 = 113,091.80 : x
  2. Step 2: Convert to fraction form
    362,409.80/543,614.52 = 113,091.80/x
  3. Step 3: Cross multiply
    362,409.80x = 543,614.52 × 113,091.80
  4. Step 4: Simplify right side
    362,409.80x = 61,478,344,572.94
  5. Step 5: Solve for x
    x = 61,478,344,572.94/362,409.80
  6. Step 6: Final answer
    x = 169,637.64

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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.