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Finding the Fourth Proportional to 362,215.60, 543,396.30 and 125,509.30

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Solution

The fourth proportional to 362,215.60, 543,396.30 and 125,509.30 is: 188,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,215.60 : 543,396.30 = 125,509.30 : x
  2. Step 2: Convert to fraction form
    362,215.60/543,396.30 = 125,509.30/x
  3. Step 3: Cross multiply
    362,215.60x = 543,396.30 × 125,509.30
  4. Step 4: Simplify right side
    362,215.60x = 68,201,289,235.59
  5. Step 5: Solve for x
    x = 68,201,289,235.59/362,215.60
  6. Step 6: Final answer
    x = 188,289.21

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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.