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Finding the Fourth Proportional to 244,636.80, 366,955.20 and 221,017.20

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Solution

The fourth proportional to 244,636.80, 366,955.20 and 221,017.20 is: 331,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,636.80 : 366,955.20 = 221,017.20 : x
  2. Step 2: Convert to fraction form
    244,636.80/366,955.20 = 221,017.20/x
  3. Step 3: Cross multiply
    244,636.80x = 366,955.20 × 221,017.20
  4. Step 4: Simplify right side
    244,636.80x = 81,103,410,829.44
  5. Step 5: Solve for x
    x = 81,103,410,829.44/244,636.80
  6. Step 6: Final answer
    x = 331,525.80

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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.