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Finding the Fourth Proportional to 362,208.10, 543,385.05 and 125,501.80

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Solution

The fourth proportional to 362,208.10, 543,385.05 and 125,501.80 is: 188,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,208.10 : 543,385.05 = 125,501.80 : x
  2. Step 2: Convert to fraction form
    362,208.10/543,385.05 = 125,501.80/x
  3. Step 3: Cross multiply
    362,208.10x = 543,385.05 × 125,501.80
  4. Step 4: Simplify right side
    362,208.10x = 68,195,801,868.09
  5. Step 5: Solve for x
    x = 68,195,801,868.09/362,208.10
  6. Step 6: Final answer
    x = 188,277.96

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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.