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Finding the Fourth Proportional to 363,797.87, 545,563.76 and 139,047.17

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Solution

The fourth proportional to 363,797.87, 545,563.76 and 139,047.17 is: 208,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,797.87 : 545,563.76 = 139,047.17 : x
  2. Step 2: Convert to fraction form
    363,797.87/545,563.76 = 139,047.17/x
  3. Step 3: Cross multiply
    363,797.87x = 545,563.76 × 139,047.17
  4. Step 4: Simplify right side
    363,797.87x = 75,859,093,459.50
  5. Step 5: Solve for x
    x = 75,859,093,459.50/363,797.87
  6. Step 6: Final answer
    x = 208,519.90

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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.