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Finding the Fourth Proportional to 447,059.60, 670,443.60 and 166,540.40

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Solution

The fourth proportional to 447,059.60, 670,443.60 and 166,540.40 is: 249,756.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,059.60 : 670,443.60 = 166,540.40 : x
  2. Step 2: Convert to fraction form
    447,059.60/670,443.60 = 166,540.40/x
  3. Step 3: Cross multiply
    447,059.60x = 670,443.60 × 166,540.40
  4. Step 4: Simplify right side
    447,059.60x = 111,655,945,321.44
  5. Step 5: Solve for x
    x = 111,655,945,321.44/447,059.60
  6. Step 6: Final answer
    x = 249,756.29

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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.