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Finding the Fourth Proportional to 362,191.52, 543,289.92 and 137,491.40

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Solution

The fourth proportional to 362,191.52, 543,289.92 and 137,491.40 is: 206,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,191.52 : 543,289.92 = 137,491.40 : x
  2. Step 2: Convert to fraction form
    362,191.52/543,289.92 = 137,491.40/x
  3. Step 3: Cross multiply
    362,191.52x = 543,289.92 × 137,491.40
  4. Step 4: Simplify right side
    362,191.52x = 74,697,691,706.69
  5. Step 5: Solve for x
    x = 74,697,691,706.69/362,191.52
  6. Step 6: Final answer
    x = 206,238.10

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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.