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Finding the Fourth Proportional to 362,209.30, 543,313.95 and 125,575.90

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Solution

The fourth proportional to 362,209.30, 543,313.95 and 125,575.90 is: 188,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,209.30 : 543,313.95 = 125,575.90 : x
  2. Step 2: Convert to fraction form
    362,209.30/543,313.95 = 125,575.90/x
  3. Step 3: Cross multiply
    362,209.30x = 543,313.95 × 125,575.90
  4. Step 4: Simplify right side
    362,209.30x = 68,227,138,253.81
  5. Step 5: Solve for x
    x = 68,227,138,253.81/362,209.30
  6. Step 6: Final answer
    x = 188,363.85

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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.